Print Tiler — Split Large Images for Printing
Drop your image here or click to choose a file
JPG, PNG, WebP, GIF, BMP — poster, blueprint, infographic, hand-drawn art
What Is a Print Tiler?
A print tiler (also called a poster tiler or image splitter for printing) takes a large image and divides it into a grid of smaller pages, each sized to fit on standard printer paper such as A4 or Letter. You print all the pages, then trim and tape them together edge-to-edge to recreate the full-size original.
This is the standard approach for printing oversized content on a home or office printer: large-format posters, architectural blueprints, technical drawings, oversized infographics, event banners, wall art, hand-drawn artwork scans, and maps. This tool runs entirely in your browser using the HTML Canvas API — your image never leaves your device.
Key Features
Auto TilingAutomatically calculates the optimal column/row grid based on image size, paper format, margin, overlap, and fit mode. No manual calculation needed.
Live Grid PreviewSee exactly how your image will be split before generating the PDF — with a numbered grid overlay and mini tile thumbnails for every page.
Fit to WidthSpecify how many pages wide. The image is scaled to span exactly that many columns while rows are calculated automatically.
Fit to HeightSpecify how many pages tall. The image is scaled to span exactly that many rows while columns are calculated automatically.
No Scaling (DPI mode)Print at the image's natural pixel density by entering a DPI value. Perfect for architectural drawings where print scale must be preserved.
Custom Paper SizesChoose A4, A3, A5, Letter, Legal, Tabloid, portrait or landscape — or enter fully custom dimensions in millimetres for non-standard paper.
Margin & OverlapAdjustable print margin (white border on each page) and tile overlap — adjacent tiles repeat a shared strip of content for accurate assembly alignment.
Cut Marks & Page LabelsOptional L-shaped cut marks at each corner for precise trimming, plus page labels (Page N of M, Row × Col) to keep tiles in the right order.
100% Private — No UploadEverything runs in your browser. Your image is never sent to any server — safe for confidential blueprints, proprietary artwork, or personal photos.
How to Print a Large Image on Multiple Pages
1
Upload Image
Drag & drop or click to upload any JPG, PNG, WebP, GIF, or BMP image.
2
Choose Paper
Select paper size (A4, Letter, A3…) and portrait or landscape orientation.
3
Set Fit Mode
Enter pages wide, pages tall, or a DPI for no-scaling. Preview updates instantly.
4
Adjust Layout
Set margin and overlap. Enable cut marks and page labels as needed.
5
Download PDF
Click Download PDF. Print at 100% / Actual Size from your PDF viewer.
Assembly tip: Print at 100% / Actual Size — never “Fit to Page”.
Use overlap (5–10 mm) so adjacent tiles share a content strip. Trim at the cut marks and
align matching content on the overlap zone to perfectly assemble your poster.
Common Use Cases
Posters & Wall ArtPrint a high-res movie poster, sports poster, or custom wall art on A4 / Letter sheets and assemble for a full-size display at home or in a studio.
Architectural PlansSplit large-format floor plans, technical drawings, or site plans into tiled pages for client review or on-site use without a large-format printer.
Maps & InfographicsPrint oversized maps, data visualizations, or timelines for a wall display, presentation, meeting room, or classroom.
Hand-Drawn ArtworkScan a large drawing and tile it for printing a full-size reproduction for tracing, display, gifting, or an art print.
Banners & SignsPrint wide-format event banners, trade-show signs, or storefront displays in sections and tape them together at the overlap zone.
Classroom & OfficePrint large diagrams, periodic tables, org charts, or historical timelines at A4/Letter scale for wall mounting in classrooms or offices.
Frequently Asked Questions
What printer settings should I use when printing the PDF?
Always print at 100% / Actual Size — never “Fit to Page” or “Shrink to Printable Area”. In Adobe Acrobat / Reader: Page Sizing → Actual Size. In macOS Preview: Scale = 100%. In Chrome: More settings → Scale = 100%. Using Fit to Page will rescale tiles and misalign the assembled image.
What does “overlap” do and how much should I use?
Overlap repeats a strip of content along the shared edges between adjacent tiles, giving you an alignment guide for assembly. Use 5–10 mm for most posters. More overlap = more wasted paper but easier alignment. For technical drawings requiring precise alignment, use 10–15 mm. With 0 mm overlap the tiles share nothing — perfect alignment is harder.
What are cut marks and how do I use them?
Cut marks are small L-shaped lines at the four corners of the printable area on each page. After printing, use a ruler and craft knife or scissors to trim along these marks, removing the white margin. Then align the trimmed edges of adjacent pages — or use the overlap zone to match the repeating content — and tape or glue the pages together on the back.
What is “No Scaling” mode and when should I use it?
“No Scaling” prints the image at a specified DPI without any resizing. For example: a 3000 × 2000 px image at 150 DPI prints at 50.8 × 33.9 cm (508 × 339 mm), and the tool calculates exactly how many A4 pages are needed. Use this for architectural drawings or engineering plans created at a known scale (e.g., 1:50) where the physical print dimensions must be preserved.
Is my image uploaded to a server?
No. The entire tool runs in your browser using the HTML5 Canvas API and jsPDF. Your image never leaves your device. No network requests are made with your image data. You can verify this by opening DevTools → Network tab while using the tool.
What image formats are supported?
Any format your browser can display: JPEG, PNG, WebP, GIF, BMP, AVIF. For best print quality, use high-resolution PNG or JPEG (300+ DPI source). The higher the source resolution, the sharper each printed tile will look. Very large images (10,000+ pixels wide) may be slow on low-RAM devices.
How do I assemble the printed tiles into a poster?
Use the page labels (R1C1, R1C2…) to sort pages into a grid layout on a flat surface. If you used overlap, trim at the cut marks of one page and align its edge to the matching content on the adjacent page. Tape or glue from behind. For large posters, use a lightbox or a window as a backlight to help align content precisely before taping.
Is there a limit to how many pages I can generate?
The tool supports up to 200 pages per PDF. Beyond that, memory usage in the browser becomes impractical on most devices. If you need more pages, try increasing the paper size (e.g., A3 instead of A4), reducing the overlap, or using a lower DPI in No Scaling mode. Each page is rendered at 150 DPI for a good balance of PDF file size and print quality.