As big as the wall needs
A 2-meter banner on A4? About 7 pages across. Set the size and GridPrint does the math. Configurable margins and overlap so pages align when you tape.
Free — runs in your browser, no install
Print a large classroom poster at home, no print shop
Upload any image, set how big you want the display, and split it across A4 or Letter pages so you can print it big on your school or home printer.
GridPrint tiles your image across as many sheets as the size needs, with crop marks and overlap guides on every page. Print at 100% scale, cut along the marks, and tape the pages into one large poster. Welcome signs, bulletin boards, science fair posters, reading corner art — all on plain A4, Letter, or A3 paper. Completely free.
Three steps to a classroom display
01
Upload your image
Drag & drop any image — photos, clip art, student work, or downloaded graphics. PNG, JPG, SVG, WebP.
02
Set the display size
Enter the target width or height in cm or inches, or just pick a page count. Choose A4 or Letter and GridPrint works out the grid.
03
Print and hang
Download the multi-page PDF and print at 100% on your school printer. Cut along the marks, tape together, and put it up.
Made for teachers
Works with school printers
A4, Letter, or A3 — whatever your school stocks. No print shop, no special equipment, no IT requests.
Assembly guide in every PDF
Crop marks and a numbered assembly map showing where each page goes. Students can put it together in the right order without help.
Free, private, no account
No account, no watermark, no trial that expires. Your images never leave your browser. Install as a PWA and use it offline — handy with spotty classroom WiFi.
Frequently asked questions
How do I print a large classroom poster at home?
Upload your image, set the display size, and download the multi-page PDF. Print every page at 100% scale (turn off "fit to page"), cut along the crop marks, and tape the pages together. Any home or school printer that takes A4 or Letter paper works — no print shop needed.
Can I print a poster bigger than A4 or Letter?
Yes. GridPrint splits your image across as many sheets as the size needs. A 2-meter wide banner on A4 uses about 7 pages across. You tape the sheets into one large display.
How do I assemble the pages into one poster?
Every page has overlap margins and crop marks. Print at 100% scale, cut along the marks, overlap adjacent pages, and tape them from behind. The numbered assembly map shows the exact order.
What paper should I use?
Plain A4 or Letter paper is fine for most displays. Colored paper works too — the PDF prints the image only, so white areas show the paper color underneath, which is great for themed displays. A3 means fewer pages and less taping.
Can students use this?
Yes. GridPrint runs in any browser — no account, no download, no install. Students can make science fair posters, group project displays, and presentations.
Does it work without internet?
Yes. After the first load, it works offline. Install it as a PWA — useful in classrooms with spotty WiFi.