Poster assembly guide

How to Use Your Poster PDF

Updated Apr 29, 2026

Use this guide after downloading your poster PDF. It covers the full process from printing and trimming to aligning and joining the pages cleanly.

Before you start: Keep the page labels visible, trim only the correct edges, and align the printed image rather than the white margins.

1. Print the PDF

  • Print at 100% scale or “Actual size.”
  • Turn off “Fit to page” and any automatic resizing.
  • Use the same paper size selected in the tool, such as A4 or Letter.
  • Print on one side only.

Best practice: Print one test page first so you can confirm scaling, margins, and paper choice before printing the full set.

2. Understand the Page Layout

Every page includes a position label so you can place it in the correct spot before trimming or joining anything.

A1
B1
C1
D1
A2
B2
C2
D2
A3
B3
C3
D3

How the labels work

  • A1, B1, C1, D1 are the first row.
  • A2, B2, C2, D2 are the second row.
  • A3, B3, C3, D3 are the third row.

What the labels mean

  • Letter = column.
  • Number = row.

Assembly order

Start from the top-left corner and finish each row before moving down:

A1 → B1 → C1 → D1
A2 → B2 → C2 → D2
A3 → B3 → C3 → D3

Tip: Lay all pages out on the floor first to confirm nothing is missing and every sheet is facing the correct direction.

3. Cut Each Page

Example showing which poster page edges to trim before assembly
  • Cut along the crop marks.
  • Cut only the right and bottom edges.
  • Keep the left and top edges intact.

Why this matters: The remaining top and left edges create the overlap that hides seams when pages are joined together.

4. Assemble the Pages

Example of overlapping and joining poster pages after trimming

Step 1: Arrange pages

Place the pages in the correct order using the layout grid, starting with A1 and continuing row by row.

Step 2: Overlap and align

Place the right page over the left page, and the bottom page over the top page. Slide the sheet slightly until the printed image lines up cleanly.

Step 3: Fix from the back

Tape from the back when possible. If you prefer a flatter finish, apply glue only to the overlap area.

Key idea: The white margin is designed to hide underneath the neighboring sheet. If the image is aligned correctly, the seam disappears and the poster reads as one piece.

Common Mistakes

  • Cutting all four edges instead of only the right and bottom edges.
  • Printing with “Fit to page” or any scaling enabled.
  • Ignoring page labels and assembling pages out of order.
  • Trying to align blank margins first instead of aligning the image itself.

One-Line Summary

Follow the page labels → cut the right and bottom edges → overlap to align the image → secure from the back.

Start Making Your Poster