How to combine sewing pattern PDFs for A0 printing
A tiled sewing pattern spreads a design across small pages, usually A4 or US Letter. You can assemble those pages digitally and send the larger PDF to a print shop. The key is to match the designer’s layout and preserve the original scale.
First, check whether your pattern already has an A0 file
Look through the files supplied by the pattern designer for an A0, copy-shop or large-format version. If one is included, follow the designer’s printing instructions for that file; you may not need to assemble the tiled version.
If you have a tiled PDF, check its page-layout diagram and margin instructions. PatternPress supports unlocked PDFs up to 15 MB and 120 pages. The pages you select must have matching dimensions and no PDF page rotation. It trims the same amount from every edge, so it cannot directly handle a layout that needs different trims on different sides.
1. Select the pattern pages in the right order
Open the PatternPress editor and choose your PDF. Leave the cover, instructions and unrelated pages out of the selection. Use the page numbers in the PDF, which may differ from the labels printed on the pattern tiles.
Enter page ranges such as 3-18, 20, or use “Select pages”. Pages fill the layout from left to right, then top to bottom. Match the designer’s diagram and use the page arrows if you need to move a tile earlier or later.
2. Match the columns and edge trim
Set the number of columns shown in the layout diagram. “Trim each edge” removes that many millimetres from all four sides of every selected page. Follow the pattern’s border or trim guide; the default 10 mm is a starting value, not a measurement that works for every pattern.
Zoom in and check each join. Lines, notches and alignment marks should meet as the designer intended. If they do not, check page order, column count and margins before continuing. PatternPress does not detect the grid automatically or repair mismatched lines. All size layers appear in both the preview and export.
3. Choose A0 sheets or one large sheet
A0 paper measures 841 × 1189 mm. PatternPress leaves a 10 mm margin around each sheet, giving an 821 × 1169 mm area for the pattern. If the assembled layout is larger, the export spans multiple A0 sheets with a 10 mm overlap. Align the repeated pattern lines when joining those sheets.
“One large sheet” creates a PDF at the assembled layout’s dimensions. Check those dimensions with your print shop before exporting. The editor shows the width and height in millimetres; supported layouts are limited to 4 metres on either side.
Both options preserve the PDF’s original scale. Choosing A0 does not shrink an oversized pattern onto one sheet, and changing the preview zoom does not change the exported dimensions.
4. Print at actual size and measure the test square
After checking the joins, confirm the scale checkbox and export. Open the downloaded PDF to inspect it once more before sending it to the print shop.
Ask for 100% / actual size printing. Turn off “fit to page”, “shrink oversized pages” and other scaling options. Measure the designer’s test square on the paper print in both directions. If it is the wrong size, resolve the print settings before cutting fabric.
Download the printing checklist (PDF) to keep these checks with your file.
What happens to your pattern file?
The preview is prepared in your browser. When you export, your PDF and layout settings are sent to the server to generate the download. PatternPress does not save the PDF or generated pattern to a database or file library. Keep your editor tab open until the download is saved, and only process patterns you own or have permission to use.