Posters & print

<context>
I need a poster and I'm not a designer. What it's for: [one or two
sentences, e.g. "a free student jazz night; I want people to
reserve"]. What I have: [e.g. "the copy in a doc, a club logo, a
print shop nearby"].
</context>
 
<task>
Interview me before anything is designed. I'll use my answers to
brief a poster layout and a print spec a printer can work from.
</task>
 
<requirements>
- At most 10 questions, grouped under: Message, Viewer, Copy, Format
  and printing, Brand and image.
- Cover the one message; the action; where it hangs and from how far
  it is read; every piece of copy; size and orientation; print
  method, paper, quantity and deadline; the printer's specs (bleed,
  safe zone, color profile, PDF/X version, minimum resolution);
  brand rules; the image's job.
- For each question: why it matters, and 2–3 typical answers.
</requirements>
 
<output_format>
Numbered questions under the five group headings, each with a
"Why:" line and a "Typical:" line.
</output_format>
 
<process>
Ask the questions and stop. Don't design anything yet. When I have
answered, write my answers back as a brief of at most 12 bullets and
list what I still need to ask the printer.
</process>

<materials>
[paste the brief from stage 1]
</materials>
 
<task>
Propose 3 materially different layout concepts for this poster, so I
can pick one to specify.
</task>
 
<requirements>
- The concepts differ in what carries the message, for example:
  type-led on a Swiss-style modular grid; image-led with one dominant
  photo or illustration; a limited-color screen-print or risograph
  look.
- For each: the idea in one line; the focal point; the hierarchy
  (what is read 1st, 2nd, 3rd); the grid; the type approach; the
  palette (CMYK-safe, plus any spot colors); the image's job and
  whether it needs AI art, a photo or none; the risk at the viewing
  distance and in a cluttered setting; what drives the print cost.
- Never invent numbers, names, quotes or sources: write [NEEDS
  SOURCE] where support is missing.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- Each concept has one focal point and survives a squint test.
- The one message reads from the stated distance in every concept.
- The three would look different at thumbnail size.
</quality_bar>
 
<output_format>
A comparison table with one column per concept, then a
recommendation in 3 sentences: which, why, and what would change
your mind.
</output_format>
 
<process>
Stop after the recommendation and wait for my choice. End with a
list of the assumptions you made.
</process>

<materials>
[paste the brief from stage 1 and the concept you chose]
[paste all the copy, in priority order]
[paste the printer's file requirements, if you have them]
</materials>
 
<context>
Poster: [purpose and action, e.g. "free jazz night; scan to
reserve"].
Hangs: [where and the viewing distance, e.g. a crowded corridor
board, read from 2–3 m].
Size: [size: A3 | A2 | A1 | 18 × 24 in | 24 × 36 in], [orientation: portrait | landscape].
Printing: [print method: digital | offset | large-format inkjet | screen print | risograph] on [paper, e.g. 170 gsm silk], [quantity, e.g. 50 copies].
Brand: [colors, fonts and logo rules, e.g. "brand orange #E8590C,
Inter, logo bottom right", or "none"].
Layout app: [app: InDesign | Affinity | Illustrator | Scribus | Canva]
</context>
 
<examples>
Posters I like: [1–3, each with what to take, e.g. "1960s jazz
record covers: huge type, one photo, two colors plus black"]
One I don't: [one, with why, e.g. "five fonts and no focal point"]
</examples>
 
<task>
Write the poster brief, a layout spec and a print spec sheet, so I
can build the file in my layout app and send it to the printer.
</task>
 
<requirements>
- Hierarchy in three levels (primary, secondary, tertiary); every
  piece of copy in exactly one; one focal point.
- Outside in: trim, bleed, safe zone, then a column or modular grid
  with margins, gutters and a slightly larger bottom margin, in mm
  (or inches). Place each element by column and row.
- Type: at most two typefaces (with free alternatives), sizes from a
  type scale with its ratio stated, leading and tracking per level.
  Check each level against the viewing distance: about 25 mm of
  letter height per 3 m.
- Color: the palette in CMYK and hex, Pantone if spot; rich black for
  large areas, 100% K for small text and hairlines; total ink under
  the printer's limit.
- Print spec: trim; bleed (3 mm or 0.125 in unless the printer says
  otherwise); safe zone; effective resolution (300 PPI at final
  size, or 150–200 if the printer accepts it for a large poster);
  ICC profile; PDF/X-4 or PDF/X-1a; crop marks; fonts embedded.
- If there is an AI image: the ratio to generate at, the upscale
  factor to the pixels needed, and empty space where the type goes.
- Never invent numbers, names, quotes or sources: write [CHECK WITH
  PRINTER] for any spec the printer must confirm, and [NEEDS SOURCE]
  where support is missing.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- The squint test: the primary still leads, then the secondary.
- Every type size is computed from the viewing distance, not
  guessed.
- Text, logo and QR code sit inside the safe zone; art runs into the
  bleed.
- The spec sheet answers every question a printer asks before
  accepting a file.
</quality_bar>
 
<output_format>
1. The brief, at most 10 bullets. 2. A copy hierarchy table (level |
copy). 3. A layout table (element | columns and rows | position from
the trim in mm | size | typeface, weight, size in pt, leading,
tracking | color). 4. A color table (name | CMYK | hex | Pantone).
5. The print spec sheet as a table. 6. The image prompt, if any.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change
your answer; otherwise go on. End with a list of the assumptions you
made.
</process>

<materials>
<brief>
[paste the brief]
</brief>
<draft>
[paste the layout and print spec, and attach a proof or the PDF
export, or describe it]
</draft>
</materials>
 
<task>
Review this poster and its print spec before I send it to the
printer. This is a fresh chat: judge only what is here.
</task>
 
<requirements>
- Score each check 1–5 with one line of evidence: hierarchy and the
  squint test; the one message at the viewing distance; grid and
  alignment; type; negative space; color (contrast, CMYK risk,
  grayscale); image artifacts at 100%; specs (trim, bleed, safe zone,
  effective PPI, profile, PDF/X, black text); rights.
- List every issue that would make a printer reject the file or
  print it badly.
- Don't redesign it or rewrite the copy. Don't praise it.
- Never invent numbers, names, quotes or sources: write [NEEDS
  SOURCE] where support is missing.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- Every problem points to an element and a measurement.
- Every fix is one concrete instruction ("set the date at 96 pt",
  "move the QR code 6 mm in from the trim").
</quality_bar>
 
<output_format>
A score table (check | score | evidence), then at most 7 fixes
ranked by effect, with issues a printer would reject first.
</output_format>
 
<process>
End with a list of the assumptions you made.
</process>

Sort this poster copy into primary, secondary and tertiary: [paste].
The one message: [e.g. "free jazz night, Friday"]. Cut what doesn't
serve it and tell me what you cut; keep every fact exactly as given.
Check that the primary is one thing a passer-by gets in 3 seconds.

<materials>
[paste all the copy, as you have it]
</materials>
 
<context>
Piece: [piece: poster | flyer | postcard | banner], [size, e.g. A2 portrait].
Goal: [the action, e.g. "scan the QR code to reserve"].
Seen: [where and from how far, e.g. a corridor board, 2–3 m].
Mandatories: [what must appear, e.g. sponsor logo, accessibility
note, age limit].
</context>
 
<task>
Edit the copy into a three-level hierarchy, so the layout can give
each level its size.
</task>
 
<requirements>
- Three levels: primary (seen from across the room: one thing),
  secondary (what, when, where), tertiary (details read up close).
- Cut or shorten anything that doesn't serve the goal; list each cut
  with a reason.
- Keep facts exactly: dates, times, names, prices, URLs.
- Rewrite only for length and clarity; keep the organizer's names
  and terms.
- Never invent numbers, names, quotes or sources: write [NEEDS
  SOURCE] where a fact is missing (a time, an address).
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- The primary is one message of at most about 6 words.
- The secondary answers what, when and where.
- No fact changed between my copy and yours.
</quality_bar>
 
<output_format>
A table (level | copy | word count), then the list of cuts.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change
your answer; otherwise go on. End with a list of the assumptions you
made.
</process>

Write 4 image-generator prompts for poster art: [subject, e.g. a
saxophone player's hands], [style, e.g. vintage screen-print look, 5
flat colors], at [ratio: 2:3 | 3:4 | 4:5] portrait, no text or logos,
with empty space in [where, e.g. the top third] for the headline.
Check that the art never competes with the headline for focus.

<materials>
[paste the chosen concept and the layout spec, if you have them]
</materials>
 
<context>
Poster: [purpose, e.g. a free student jazz night], [size, e.g. A2
portrait].
Printing: [print method: digital | offset | large-format inkjet | screen print | risograph]
Image tool: [tool, e.g. Midjourney, Firefly, Ideogram or a chat
assistant's image mode].
Where the type goes: [e.g. headline in the top 40%, details along
the bottom 15%].
</context>
 
<examples>
Images I like: [1–3, each with what to take: palette, lighting,
texture or composition]
One I don't: [one, with why, e.g. "glossy stock-photo look"]
</examples>
 
<task>
Write prompts for the poster's main image, so I can generate it,
pick one and finish it for print.
</task>
 
<requirements>
- Generate at the ratio nearest the trim that the tool offers (2:3
  for 24 × 36 in, 3:4 for 18 × 24 in, 4:5 for 16 × 20 in; for A
  sizes, 2:3 then crop or 3:4 then extend).
- Each prompt: subject and action; style by visible qualities, never
  a living artist's name; palette; lighting; composition with the
  empty area named; mood; "no text, no letters, no logos"; art to all
  four edges; aspect ratio.
- Vary one thing per prompt: lighting, viewpoint, palette or style.
- A palette that survives CMYK: no neon screen colors unless a
  fluorescent spot ink is planned.
- The upscale factor from the tool's output to the pixels needed at
  final size plus bleed.
- Never invent numbers, names, quotes or sources: write [NEEDS
  SOURCE] where support is missing.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- The image supports the message instead of fighting the headline
  for the focal point.
- The empty area is big enough for the primary level.
- No prompt asks for text, hands at work or exact counts.
</quality_bar>
 
<output_format>
The 4 prompts in separate text blocks, each with a one-line note on
what it varies; then the ratio, the crop or extend step and the
upscale factor in 3 lines.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change
your answer; otherwise go on. End with a list of the assumptions you
made.
</process>

Suggest 3 type pairings (a display face and a text face, each free on
Google Fonts, plus a paid alternative) for a [mood, e.g. warm, retro]
poster. For the one I pick, give sizes in pt per hierarchy level on a
[size, e.g. 24 × 36 in] poster read from [distance, e.g. 3 m], with
leading and tracking. Check every size against about 25 mm of letter
height per 3 m.

<materials>
[paste the copy hierarchy]
</materials>
 
<context>
Poster: [size, e.g. 24 × 36 in], read from [distance, e.g. 1–3 m].
Mood: [e.g. "late-night, warm, a little retro"].
Brand fonts: [fonts, e.g. Inter, or "none"].
Category I lean toward: [category: old-style serif | Didone | slab serif | grotesque sans | geometric sans | humanist sans]
</context>
 
<examples>
Type I like: [1–3 posters, covers or sites, each with what to take,
e.g. "huge condensed sans, tight leading"]
Type I don't: [one, with why, e.g. "script caps on the details"]
</examples>
 
<task>
Write a type spec for the poster, so every hierarchy level has a
face, a size, leading and tracking.
</task>
 
<requirements>
- At most two typefaces; variety from weight and size.
- Sizes from a type scale: state the ratio (e.g. 1.5 or 1.618) and
  the base size.
- 2–3× size contrast between primary and secondary.
- Headline leading about 0.85–1.1× the size, body about 1.2–1.5×;
  all-caps and small text tracked slightly looser, big display type
  slightly tighter.
- The letter pairs to kern by hand in the headline.
- Each level checked against the viewing distance: about 25 mm of
  letter height per 3 m, using cap height (roughly 0.7× the point
  size, which varies by face).
- Never invent numbers, names, quotes or sources: write [NEEDS
  SOURCE] where support is missing, and [CHECK LICENSE] for any font
  license I must confirm.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- No level needs a third typeface.
- Every size passes the distance check or is marked "read up close".
- The headline still reads at thumbnail size.
</quality_bar>
 
<output_format>
The 3 pairings as a table (display | text | free source | paid
alternative | why), then the spec as a table (level | typeface and
weight | size in pt | cap height in mm | leading | tracking | reads
from), then the kerning pairs.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change
your answer; otherwise go on. End with a list of the assumptions you
made.
</process>

Turn these screen colors into a print palette: [paste hex values].
Printing [print method: digital | offset | screen print] on [paper, e.g. uncoated 150 gsm].
Give CMYK builds, which colors will shift or fall out of gamut,
Pantone matches to check in a swatch book, and a rich black recipe.
Check that text and background still contrast in grayscale.

<materials>
[paste the colors you have: hex values, a brand guide or the image]
</materials>
 
<context>
Printing: [print method: digital | offset | large-format inkjet | screen print | risograph] on [paper: coated gloss | coated silk | coated matte | uncoated].
Printer's profile: [e.g. PSO Coated v3 (FOGRA51), GRACoL, or "not
asked yet"].
Brand rules: [e.g. "the orange must match Pantone Orange 021 C", or
"none"].
</context>
 
<task>
Write a color spec for the poster, so the printed colors match what
I approved on screen as closely as the press allows.
</task>
 
<requirements>
- Each color: its role (background, primary type, accent), hex, CMYK
  build, and whether it falls outside the CMYK gamut and how it will
  shift.
- Spot colors only where they earn their cost (an exact brand color,
  a metallic, a fluorescent); coated (C) and uncoated (U) swatches
  differ.
- Rich black for large areas (a common recipe is C60 M40 Y40 K100;
  confirm the printer's); 100% K for small text and thin lines.
- Total ink under the printer's limit (typically around 300% on
  coated stock, lower on uncoated).
- How uncoated or tinted paper will change the palette.
- Never invent numbers, names, quotes or sources: write [CHECK WITH
  PRINTER] for the profile, ink limit and black recipe, and [NEEDS
  SOURCE] where support is missing.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- Text and background still contrast when converted to grayscale.
- No small text uses rich black or a four-color build.
- Every out-of-gamut color has a stated fallback.
</quality_bar>
 
<output_format>
A table (role | hex | CMYK | Pantone to check | gamut risk |
fallback), the black recipes, and 3 questions to ask the printer.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change
your answer; otherwise go on. End with a list of the assumptions you
made.
</process>

Plan a [inks: 2 | 3 | 4]-ink screen-print gig poster of [subject, e.g. a
surf-rock band]: the image prompt (flat colors, no gradients, no text,
an empty band for the name), how to vectorize it and separate it into
one layer per ink, and what to ask the printer about trapping. Check
that every element is one flat ink or an intended overlap.

<materials>
[optional: paste or attach the sketch or AI image you have]
</materials>
 
<context>
Poster: [event or subject, e.g. a gig poster for a surf-rock band],
[size, e.g. 18 × 24 in].
Method: [method: screen print | risograph], [inks: 2 | 3 | 4] inks.
Ink colors: [e.g. fluorescent pink, teal and black, or "help me
choose"].
Tools: [e.g. an image generator, then Illustrator or Inkscape].
</context>
 
<examples>
Gig posters I like: [1–3, each with what to take, e.g. "two inks
overlapping to make a third"]
One I don't: [one, with why, e.g. "photographic detail that won't
separate"]
</examples>
 
<task>
Plan the artwork and color separations for a limited-ink print, so
the printer can make one screen (or master) per ink.
</task>
 
<requirements>
- The image prompt: flat shapes; exactly the stated inks; no
  gradients or photographic detail; slight paper texture at most;
  an empty band for the type; no text.
- Vectorize with a color limit equal to the ink count; clean the
  paths; one layer per ink, named after the ink.
- For a risograph: each ink as a grayscale layer; plan for slight
  misregistration and for overlaps that make extra colors.
- Type set by me as vector and assigned to one ink.
- Never invent numbers, names, quotes or sources: write [CHECK WITH
  PRINTER] for trapping, minimum line weight and ink choices, and
  [NEEDS SOURCE] where support is missing.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- Every element is one ink or an intended overlap.
- Thin lines and small type are thick enough for the method.
- The design still reads if registration drifts by about a
  millimeter.
</quality_bar>
 
<output_format>
The image prompt in a text block, a separation table (ink | what it
prints | layer name | notes), and the steps from image to files.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change
your answer; otherwise go on. End with a list of the assumptions you
made.
</process>

I'm printing [quantity and size, e.g. 50 × A2] by [print method: digital | offset | large-format inkjet].
Files: [e.g. an AI image upscaled to 5031 × 7087 px, RGB; type live in
InDesign]. Write a spec sheet (trim, bleed, safe zone, effective PPI,
profile, PDF/X, crop marks) and a preflight checklist, and flag what
in my setup will cause a problem.

<materials>
[paste the printer's file requirements, or write "none yet"]
[paste the layout spec]
</materials>
 
<context>
Job: [quantity and size, e.g. 50 × A2 portrait] on [stock and
finish, e.g. 170 gsm silk, no lamination].
Method: [print method: digital | offset | large-format inkjet | screen print | risograph]
Files: [what's in the layout, e.g. "an AI image upscaled to 5031 ×
7087 px, RGB; type live in InDesign; logo as SVG; QR code as PNG"].
Export from: [app and version, e.g. InDesign 2025].
</context>
 
<task>
Write a print spec sheet and a preflight checklist for this job, so
the file passes the printer's checks the first time.
</task>
 
<requirements>
- Spec sheet: trim; bleed; safe zone; effective resolution of each
  image at its placed size; color mode and profile; PDF/X version;
  crop mark offset; font embedding; total ink; rich black and black
  text.
- Checklist items each testable in the app's preflight or by eye:
  RGB or low-resolution images, missing fonts, missing bleed, text in
  the bleed, hairlines under 0.25 pt, rich black on small text, spot
  colors named as in the swatch book.
- The QR code: dark on light, a quiet zone of 4 modules around it,
  tested from a print at real size.
- Never invent numbers, names, quotes or sources: write [CHECK WITH
  PRINTER] for any value only the printer can confirm.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- Every item says how to check it and what passes.
- The effective PPI is computed for each image at its placed size.
- Nothing contradicts the printer's requirements.
</quality_bar>
 
<output_format>
The spec sheet as a table (spec | value | from the printer or a
default), then the checklist as checkboxes grouped by stage:
document setup, images, type, color, export.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change
your answer; otherwise go on. End with a list of the assumptions you
made.
</process>

Write a short, polite email to a print shop. Job: [quantity and size,
e.g. 50 × A2] on [stock, e.g. 170 gsm silk], needed by [date, e.g. 3 March]. Ask for
bleed and safe zone, minimum resolution, color profile or RGB/CMYK,
PDF/X version, rich black and ink limit, proofing and file delivery.
Under 150 words; check that each question can be answered with a value.

<materials>
[optional: paste the file guidelines from the printer's website]
</materials>
 
<context>
Job: [quantity, e.g. 50] × [size, e.g. A2 portrait] on [stock, e.g. 170 gsm silk], [finish: none | matte laminate | gloss laminate | spot UV | foil].
Method: [print method: digital | offset | large-format inkjet | your recommendation]
Deadline: [date and whether it can move, e.g. 3 March, fixed].
Me: [who, e.g. a student society, first job with this shop].
</context>
 
<task>
Write an email to the printer, so I get their file specs before I
start the layout.
</task>
 
<requirements>
- Ask for: bleed and safe zone; minimum effective resolution; color
  profile, or whether they prefer RGB and convert; preferred PDF/X
  version; rich black recipe and total ink limit; proofs (hard or
  PDF) and their cost; file delivery method and deadline.
- Skip anything their guidelines above already answer.
- Under 150 words, numbered questions, polite and specific.
- Never invent numbers, names, quotes or sources: write [NEEDS
  SOURCE] where support is missing; state no price or date I didn't
  give.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- Every question can be answered with a value or a yes or no.
- The job details are complete enough for them to quote.
- Nothing asks what their guidelines already say.
</quality_bar>
 
<output_format>
A subject line, then the email body in plain text.
</output_format>
 
<process>
End with a list of the assumptions you made.
</process>

Critique this poster [paste a description, or attach it]: goal [e.g.
"scan to reserve"], seen from [distance, e.g. 3 m]. First say what
you see 1st, 2nd and 3rd in 3 seconds; then review hierarchy, grid,
type, color and negative space. Give the 5 changes with the biggest
effect as concrete instructions, and don't redesign it.

<materials>
[attach the draft or proof, or describe it: size, every element,
its position, size and colors]
[paste the brief]
</materials>
 
<context>
Goal: [the action, e.g. scan the QR code to reserve].
Seen: [where and from how far, e.g. a crowded board, 2–3 m].
Stage: [stage: concept | first layout | final proof]
</context>
 
<examples>
A poster I'd like this to be as good as: [one, with what it does
well]
</examples>
 
<task>
Critique the design, so I know what to fix before the next round.
</task>
 
<requirements>
- Start with a 3-second read from the stated distance: what is seen
  1st, 2nd and 3rd, and what the designer wanted seen that was
  missed.
- Then: hierarchy and the squint test; CRAP (contrast, repetition,
  alignment, proximity); the grid; type (faces, sizes, spacing,
  legibility at the distance); color (contrast, grayscale, CMYK
  risk); negative space; the call to action.
- Don't redesign it or rewrite the copy. Don't praise it.
- Never invent numbers, names, quotes or sources: write [NEEDS
  SOURCE] where support is missing.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- Each problem names the element and where it is.
- Each fix is a concrete instruction ("move X to Y", "set Z at
  120 pt").
- Fixes are ranked by their effect on the 3-second read.
</quality_bar>
 
<output_format>
The 3-second read in 3 lines, a table (principle | issue | fix),
then the top 5 fixes ranked.
</output_format>
 
<process>
End with a list of the assumptions you made.
</process>

Make a cool poster for our jazz night with a saxophone. Make it look
professional and print quality.

<materials>
Copy: "Late Blue: Jazz Night" · Fri 14 March, 20:00 · Union Basement
· Free entry · Lineup: [paste the 3 names] · "Scan to reserve" with a
QR code · sponsor logo.
Printer's specs: 3 mm bleed, PDF/X-4, ISO Coated v2 (FOGRA39),
300 PPI at final size.
</materials>
 
<context>
A free student jazz night. Goal: people scan the QR code to reserve.
It hangs on busy corridor boards and is read from 2–3 m. A2 portrait,
digital print on 170 gsm silk, 40 copies. No brand rules except the
sponsor logo, bottom right.
</context>
 
<examples>
Like: 1960s jazz record covers: huge bold type, one photo, two colors
plus black.
Don't like: club flyers with five fonts and a photo behind every word.
</examples>
 
<task>
Write the copy hierarchy, a layout spec and a CMYK palette for the
poster, plus an image-generator prompt for the art, so I can build it
in InDesign and send it to the printer.
</task>
 
<requirements>
- Three levels of hierarchy and one focal point.
- A 6-column grid on the A2 trim (420 × 594 mm) with 3 mm bleed and a
  10 mm safe zone; positions in mm from the trim.
- At most two typefaces; sizes in pt from a type scale; each level
  checked against 2–3 m (about 25 mm of letter height per 3 m).
- Palette in CMYK for FOGRA39; small text in 100% K.
- The image prompt at 2:3, with no text and the top 40% empty for
  the headline.
- Never invent numbers, names, quotes or sources: write [CHECK WITH
  PRINTER] where only the printer can confirm a value.
</requirements>
 
<quality_bar>
Before answering, check your draft against:
- The squint test: the headline leads, then date and place.
- Date and place read from 3 m; details read up close.
- Nothing important within 10 mm of the trim.
</quality_bar>
 
<output_format>
A hierarchy table, a layout table (element | columns | position in mm
| type), a palette table, and the image prompt in a text block.
</output_format>
 
<process>
Ask me up to 3 questions first if anything missing would change your
answer; otherwise go on. End with a list of the assumptions you made.
</process>

Hierarchy
1  LATE BLUE / JAZZ NIGHT
2  Fri 14 March · 20:00 · Union Basement · Free entry
3  Lineup · "Scan to reserve" + QR code · sponsor logo
 
Grid: 6 columns, 10 mm gutters, 20 mm margins, 28 mm at the bottom.
Element      Columns  Position from top-left of trim    Type
Image        1–6      full bleed                        -
Headline     1–6      top at 40 mm, two lines           Anton 220 pt, leading 0.9
Cream band   1–6      460 mm to the bottom bleed        -
Date/place   1–4      470 mm, two lines                 Inter Bold 36 pt
Lineup       1–3      520 mm                            Inter Regular 18 pt
QR code      5–6      505 mm, 32 × 32 mm                -
Sponsor      5–6      545 mm                            -
 
Palette (FOGRA39)
Deep blue    C100 M80 Y20 K30   image background
Warm orange  C0 M55 Y90 K0      headline
Cream        C0 M4 Y12 K0       bottom band
Text         K100               everything on the cream band
 
Image prompt: Close-up of a saxophone player's hands and the bell of
the saxophone, dramatic side light, flat two-color screen-print look
in deep blue and warm orange on black, grainy texture. The subject
sits between 40% and 75% of the height, right of center; the top 40%
and the bottom 25% are plain dark blue. No text, no letters, no
logos. Aspect ratio 2:3.
Then crop about 6% off the height for A2, extend 3 mm for bleed, and
upscale to 5031 × 7087 px.
 
All sizes checked against the 2–3 m viewing distance.
Assumptions: Anton and Inter (both free) are acceptable; the QR code
links to the reservation page.

Date and place are at 36 pt: about 9 mm of cap height, readable from
about 1 m, but the brief needs them at 3 m. Recompute every level from
cap height (point size × 0.353 mm × the face's cap-height ratio)
against 25 mm per 3 m and show the arithmetic. Re-flow date and place
on the grid so they fit at the new size (more lines or more columns),
keep the headline at least 2× the new secondary size, and change
nothing else.