Keep the real size.
Choose 100% or Actual size in the PDF reader. Turn off Fit, Shrink and borderless enlargement. The assembly map includes a 50 mm ruler to check your settings.
PAPERTILES / A LITTLE PAPER. A BIGGER PICTURE.
One image.
Room to grow.
Make a big poster with your everyday printer. Split your artwork across A4 or Letter sheets, then trim, line up and bring it together.
JPG / PNG / WebP · One image · Up to 40 MB / 32 MP / 16,000 px per edge
Free · No signup · Your image stays on this device
ONE
BIG IDEA.
ONE ORIGINAL / SIX SHEETS / A BIGGER PICTURE
Exact finished dimensionsOverlapping edges for alignmentOne PDF, made in your browser
01 / START WITH AN IMAGE
Make room for the whole picture.
03 / CHECK THE SHEETS
See how it comes together.
Add an image to preview your poster.
Finished size
Image sheets
Source resolution
Select a sheet on the map or use the buttons below. Shaded strips show shared image areas.
Selected sheet
04 / MAKE THE PRINT FILE
A bigger idea, ready for paper.
Choose an image to begin
RGB image in a multi-page PDF. Print at 100% / Actual size, without Fit or Shrink. Up to 64 image sheets.Your poster PDF is ready.
Use the matching paper size. Print one test sheet before the full run. If you included the assembly map, check its 50 mm ruler. The printer's unprintable area can vary.
A LITTLE PRINT KNOW-HOW
Print once. Line it up. Make it yours.
Trim, align, overlap.
Trim the white margins around each image area. Match the repeated picture at neighboring edges and overlap by your chosen amount. For zero overlap, join the edges. Tape from the back.
Print a test first.
Paper margins, ink and source resolution affect the result. Start with one sheet, check scale and detail, then print the rest. The PDF cannot turn a small image into a detailed original.
Before the first sheet.
Does my image leave this device?
Image decoding, previews and PDF generation happen locally in this browser tab. No artwork is uploaded, and this tool does not load visitor analytics. Cloudflare still handles ordinary page and asset requests. Reloading clears your image and settings.
How many sheets will I need?
The count depends on the finished size, paper, margins and overlap. The preview shows the exact image-sheet count; including an assembly map adds one PDF page. This version allows up to 64 image sheets and a maximum poster height of 500 cm.
Why do neighboring pages repeat part of the image?
That repeated area is the overlap. It helps you match the picture when assembling it and is counted once in the finished poster size. Set overlap to zero for edge-to-edge joining.
Does it accept PDFs or SVG files?
This version accepts JPG, PNG and WebP images. Transparent areas are flattened onto white in the PDF. It exports an RGB JPEG image inside the PDF; it does not preserve vector artwork or provide CMYK, bleed or professional color proofs.
Can I print from a phone?
You can prepare and download the PDF in a supported mobile browser. Your PDF viewer or printer app must let you select the correct paper and 100% / Actual size. If it only offers Fit, use a viewer with scaling controls before printing.