ImageSplit
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Split an image to a printable PDF

Choose how many sheets wide the poster should be. ImageSplit keeps the original ratio, fills extra page area with white, and downloads one ordered PDF. This is the paper-size engine; the printing page only exports image tiles.

100% private — processing happens entirely in your browser.

One PDF, numbered sheets, clear assembly order

Choose paper first, then set the final poster width. The guide page explains the trim and overlap.

Build the printable poster

1. Start with a print setup

3. Set the assembled size

4. Finish the sheets

Printable posters

What is Split to PDF?

Split to PDF creates a single PDF with numbered sheets, paper settings, trim marks, and an assembly guide. It is the right workflow when a larger image needs to be printed on ordinary paper.

How it works

Build the poster PDF

  1. 1

    Choose the image

    The preview shows one box per page. Empty regions stay unprinted white. Files over 50 MB should go through the compressor first.

  2. 2

    Set paper and width

    Pick A4 or Letter, portrait or landscape. Sheets across control the final width. Rows follow the image ratio.

  3. 3

    Print at actual size

    Disable fit-to-page unless you want the driver to rescale every sheet. Assemble in page order, overlapping the repeated strip.

Made for real projects

Turn one image into a printable poster plan

Home decorators

Create wall art from a high-resolution photo without ordering a custom large-format print.

Teachers and event teams

Prepare signs, visual aids, or displays with the printer and paper already available.

Makers and designers

Test a poster at full scale before sending the final artwork to a print shop.

Why ImageSplit

A simple tool for a specific job

Paper-aware setup

Choose A4 or US Letter, portrait or landscape, and the width of the assembled result.

Assembly guide included

The PDF starts with a numbered plan that explains the sheet order and overlap.

Local PDF creation

The source image and PDF generation stay in the browser.

Get better results

Tips before you download

Use a detailed source

A poster needs enough pixels for the final assembled size.

Test one sheet first

Print a sample at 100% scale before committing to a large wall piece.

Keep overlap consistent

Use the selected overlap and trim marks when taping pages together.

Next steps

Keep creating with ImageSplit

FAQ

Frequently asked questions

Can I pick A4 and US Letter?

Yes. Portrait or landscape. Every page in the PDF uses that paper size. A4 is 210×297 mm; US Letter is 8.5×11 in. The preview shows one box per page.

What do margin and overlap do?

Margin (default 8 mm) keeps ink off the printer edge. Overlap (default 4 mm) repeats a strip on neighboring sheets so you can align and tape them. Increase overlap if your printer clips; increase margin if the driver already adds its own border.

Is there a page cap?

Sheets across can be 1–10. The automatic row count must stay at or under 100 pages. A very tall image with many sheets wide will hit that cap.

Does this upload the picture?

No. The PDF is rasterized locally. Transparent pixels flatten onto white for predictable printing.

Can I upload an existing PDF?

Not on this page. Convert the page you own to an image first, then build a new poster PDF.

What do trim marks and page numbers do?

Trim marks show where to cut after taping. Page numbers print on each sheet so you can sort a dropped stack. Both are on by default and can be turned off before you build the PDF.

Ready to use Split to PDF?

Scroll back to the workspace, add an image, and create the result in this browser.

Start this tool