PDF Tiler

What this tool does

PDF Tiler takes any multi-page PDF sewing pattern, removes the page margins, tiles all the pages together into a grid, and exports a single file at the correct width for a plotter or large-format printer (841 mm wide). Your pattern pieces stay at their true physical size — a 2×2 inch calibration square will always print as 2×2 inches.

Step 1 — Upload your PDF

Drag and drop your PDF onto the upload area, or click it to browse. The tool accepts any multi-page PDF pattern — A4, Letter, or any other page size.

Step 2 — Remove margins

Most PDF patterns have a white border around each page. Use Manual trim to strip these before tiling. Enter the margin size in mm or inches — the chain button keeps all four sides locked together. Unlock it to set different values per side.

Step 3 — Set the grid layout

Use the cols × rows inputs to match your pattern's intended arrangement. For example, a pattern laid out across 4 columns and 2 rows would be 4 × 2. The app defaults to a balanced layout automatically.

• Use + Add row to add extra empty rows for rearranging
• Changing columns automatically recalculates rows to fit all pages

Step 4 — Arrange the pages

Check that the pages are in the right positions. You can:

• Drag and drop any tile to swap it with another
• Type a custom order in the page order field and hit Apply
• Hit Reset to restore the original order
• Click any tile to inspect it at full resolution in a lightbox

Step 5 — Select and delete unwanted pages

To remove pages from the grid:

• Hover a tile and click the orange × to remove a single page
• Click a tile to select it, then Shift+click to select a rectangular block (like Excel)
• Ctrl/Cmd+click to add individual tiles to the selection
• Use the floating bar at the bottom to Delete pages or Delete column(s)

Step 6 — Preview

Click Preview to see the full assembled pattern as one high-resolution image. Use the zoom controls to check that seam lines align correctly across page boundaries.

Step 7 — Generate & print

Click Generate PDF — the file downloads automatically. The output is always 841 mm wide (full A0 plotter width) and exactly as long as your pattern. Send it to any print shop or large-format plotter and ask them to print at 100% scale.

Each page in the grid has been automatically labelled based on its position — A1, A2, A3… for row A, B1, B2… for row B, and so on.

You can change any label to match what's printed on your pattern pages — for example if your pattern says A1 in the corner, type that in.

Once all pages are labelled, click ✓ Done Labeling, then click ↕ Auto-sort to automatically rearrange the grid into the correct row-and-column order.

Labels must be unique — duplicates will be highlighted in red.