Poster across multiple sheets (Letter or A4)
Enlarge a photo or image across several Letter or A4 sheets to print at home and assemble a big poster or banner, with overlap margins and cutting guides.
How to usePrint a large image across several sheets
Available in: 
Poster across multiple sheets (Letter or A4): what it is for
Choose the photo, the paper size and how many sheets you want across. The tool calculates the height, shows the grid over the image, the final poster size and the resolution per sheet, and generates a PDF with one sheet per piece, with a printer margin, an overlap strip for gluing and each sheet's number.
The image isn't uploaded to any server: everything happens in your browser.
How to use
- Choose the image.
- Set the paper, sheets across and orientation.
- Generate the PDF and print.
When to use it
- Making a birthday party banner.
- Printing big maps and posters.
- Classroom decorations.
Frequently asked questions
How do I put the poster together after printing?
The sheets are numbered by row and column. Trim the white margin on one side, overlap the repeated strip of the neighboring sheet and tape them together from the back.
What's the final size?
Each Letter sheet is 8.5 × 11 in (21.6 × 27.9 cm) and each A4 is 21 × 29.7 cm. A 3 × 3 grid of portrait sheets makes a poster of roughly 22 × 30 in (57 × 81 cm), minus margins and overlap.
Will the quality be good?
It depends on the photo's resolution. For each sheet, ideally have at least 1,000 pixels of width. Small photos enlarged too much look blurry.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.