Make a poster from one PDF page or image

This tool enlarges one selected source page and cuts the layout into a row-by-row grid. It does not put several source pages on one sheet. A4 is 210 × 297 mm; Letter is 215.9 × 279.4 mm. With 10 mm margins, each A4 sheet has 190 × 277 mm of printable content. A 500 mm wide poster therefore needs at least three columns. The number of rows depends on the source proportions.

Overlap repeats a narrow strip of artwork on neighbouring sheets. With 5 mm overlap and a 190 mm printable width, the next column begins 185 mm after the previous one. Sheet labels use row-column numbering, starting at 1-1 in the top left. Cut marks and labels appear only when margins are at least 3 mm. The preview shows the assembly grid, not the source artwork. Keep overlap smaller than the printable width and height.

Choose the matching paper size and Actual size or 100% in the printer dialog. Fit to page changes the planned poster dimensions. Print one test sheet first and measure a known feature before printing the whole poster. Width mode preserves source proportions; scale mode uses the source PDF dimensions. Still images use a 96-pixel-per-inch baseline in scale mode, so width mode is better when you need a physical size.

Existing PDF text and vector graphics remain PDF content. Scans and still images remain raster artwork and may look soft when enlarged. Animated images, multi-image HEIC files and unsupported encodings should be converted to a still image first. PDFs with forms, links, annotations, signatures, bookmarks, layers, tagged structure, attachments or advanced document actions are blocked because these features cannot be preserved. Metadata is not copied. The output is limited to 100 sheets on phones or low-memory devices and 200 sheets on larger devices, plus the device's memory budget; try a smaller poster or split a large source document.