Glass and Mosaic
Both crafts · Free tool

Pattern Resizer

The whole source page is resized, including margins. Use a cropped full-size drawing for accurate results.

  1. 01 Step 1. Upload a single-page PDF or a JPG/PNG image. Multi-page tiled PDFs must first be assembled.
  2. 02 Step 2. Check the original page or drawing dimensions. Enter the new width; keep proportions locked unless intentional distortion is required.
  3. 03 Step 3. Choose Letter or A4 and create the PDF. Print at Actual size, measure the one-inch square and align the quarter-inch overlaps.

Free · runs in your browser · nothing is uploaded

The entire image or PDF page is scaled, including margins. Use a cropped full-size drawing, not a tiled multi-page PDF. A PDF preview is not shown; confirm its dimensions in the source file.

Resizing changes line widths too. Recheck foil/came allowance. This tool does not change the geometry or remove difficult cuts.

Pattern Resizer

The output contains a calibration page and numbered tiles with crop marks. Scaling changes seam widths as well as piece dimensions. This tool does not redraw pieces, remove tight curves or calculate new came allowances. A full-size library PDF includes page margins, so resizing its entire page is not the same as entering the glass panel width.

Use your drawing’s actual page dimensions and calculate a scale ratio, or crop to the drawing before resizing. The original image/PDF stays on your device.