SoloEdgeToolsPricingAbout
ConverterInputs stay in this tabFree · Pro $19

Sewing PDF Pattern Stitcher & Projector Tool

Bi-directional A0 ↔ US Letter/A4 pattern tiler & stitcher, OCG size-layer isolator with permanent flatten export, and 4-point perspective projector calibration — 100% local in your browser.

1. Pattern PDF & bi-directional imposition

indie-bodice-a0-layered.pdf (demo A0 pattern)

Detected page size: A0 Portrait (841 × 1189 mm) · 1 page (2384 × 3370 pt)
mm
mm

2. Projector & 4-point perspective calibration

Drag the 4 corners on the preview or enter your 4-inch test square measurement

Print a 4 inch square, measure the actual length, and enter it below to calibrate scale

Project or print the 4-inch calibration square, measure it with a physical sewing ruler, and enter the measured length below.

in
Scale correction: 100.0% (Effective zoom: 100.0%)
%

How A0 ↔ Letter tiling, OCG layer baking & 4-point homography work

Bi-directional tiling & stitching: Given a target sheet of size W_paper × H_paper with printer margin m and overlap o (default 10 mm), each additional tile advances by step_W = W_paper − 2m − o and step_H = H_paper − 2m − o. Slicing an A0 sheet (841 × 1189 mm) requires ceil((W_A0 − o) / step_W) × ceil((H_A0 − o) / step_H) tiles.

Permanent OCG layer flattening: Standard PDF viewers reset hidden /OCProperties size layers when saving or sending to a copy shop. Our flattener renders only your checked Optional Content Groups via pdfjs.getOptionalContentConfig() and rebuilds a clean, layer-free PDF using pdf-lib.

Imposition & Assembly Map

Tile to Letter: 5 rows × 5 cols (25 pages · overlap 10mm)

Output tile grid
5 × 5 (25p)
Overlap 10 mm · Margin 10 mm
Detected input format
A0
A0 Portrait (841 × 1189 mm)
OCG size layers
6/6 active
Built-in multi-size vector
Visual Tile Assembly Map (5 rows × 5 columns)Adjacent seams show exact 10mm overlap & matching page number
R1C1Page 1
→ overlap 10mm / match page 2
↓ overlap 10mm / match page 6
R1C2Page 2
→ overlap 10mm / match page 3
↓ overlap 10mm / match page 7
R1C3Page 3
→ overlap 10mm / match page 4
↓ overlap 10mm / match page 8
R1C4Page 4
→ overlap 10mm / match page 5
↓ overlap 10mm / match page 9
R1C5Page 5
→ Right outer border
↓ overlap 10mm / match page 10
R2C1Page 6
→ overlap 10mm / match page 7
↓ overlap 10mm / match page 11
R2C2Page 7
→ overlap 10mm / match page 8
↓ overlap 10mm / match page 12
R2C3Page 8
→ overlap 10mm / match page 9
↓ overlap 10mm / match page 13
R2C4Page 9
→ overlap 10mm / match page 10
↓ overlap 10mm / match page 14
R2C5Page 10
→ Right outer border
↓ overlap 10mm / match page 15
R3C1Page 11
→ overlap 10mm / match page 12
↓ overlap 10mm / match page 16
R3C2Page 12
→ overlap 10mm / match page 13
↓ overlap 10mm / match page 17
R3C3Page 13
→ overlap 10mm / match page 14
↓ overlap 10mm / match page 18
R3C4Page 14
→ overlap 10mm / match page 15
↓ overlap 10mm / match page 19
R3C5Page 15
→ Right outer border
↓ overlap 10mm / match page 20
R4C1Page 16
→ overlap 10mm / match page 17
↓ overlap 10mm / match page 21
R4C2Page 17
→ overlap 10mm / match page 18
↓ overlap 10mm / match page 22
R4C3Page 18
→ overlap 10mm / match page 19
↓ overlap 10mm / match page 23
R4C4Page 19
→ overlap 10mm / match page 20
↓ overlap 10mm / match page 24
R4C5Page 20
→ Right outer border
↓ overlap 10mm / match page 25
R5C1Page 21
→ overlap 10mm / match page 22
↓ Bottom outer border
R5C2Page 22
→ overlap 10mm / match page 23
↓ Bottom outer border
R5C3Page 23
→ overlap 10mm / match page 24
↓ Bottom outer border
R5C4Page 24
→ overlap 10mm / match page 25
↓ Bottom outer border
ProLayer isolation + flatten export$19 once

Included in Pro. Unlock once, keep it on this device.

Projector mode canvas (4-point perspective calibration)

Drag the 4 corner handles (TL, TR, BR, BL) on the preview to correct keystone tilt without distorting true 1:1 scale

Corner offsets: TL(0,0) · TR(0,0) · BR(0,0) · BL(0,0)
TileGrid (R, C)Offset (mm)Right Seam InstructionBottom Seam Instruction
Page 1R1C10.0, 0.0overlap 10mm / match page 2overlap 10mm / match page 6
Page 2R1C2185.9, 0.0overlap 10mm / match page 3overlap 10mm / match page 7
Page 3R1C3371.8, 0.0overlap 10mm / match page 4overlap 10mm / match page 8
Page 4R1C4557.7, 0.0overlap 10mm / match page 5overlap 10mm / match page 9
Page 5R1C5743.6, 0.0Outer right edgeoverlap 10mm / match page 10
Page 6R2C10.0, 249.4overlap 10mm / match page 7overlap 10mm / match page 11
Page 7R2C2185.9, 249.4overlap 10mm / match page 8overlap 10mm / match page 12
Page 8R2C3371.8, 249.4overlap 10mm / match page 9overlap 10mm / match page 13
Page 9R2C4557.7, 249.4overlap 10mm / match page 10overlap 10mm / match page 14
Page 10R2C5743.6, 249.4Outer right edgeoverlap 10mm / match page 15
Page 11R3C10.0, 498.8overlap 10mm / match page 12overlap 10mm / match page 16
Page 12R3C2185.9, 498.8overlap 10mm / match page 13overlap 10mm / match page 17
Page 13R3C3371.8, 498.8overlap 10mm / match page 14overlap 10mm / match page 18
Page 14R3C4557.7, 498.8overlap 10mm / match page 15overlap 10mm / match page 19
Page 15R3C5743.6, 498.8Outer right edgeoverlap 10mm / match page 20
25 tiles5 × 5Overlap: 10 mmTarget: Letter100% client-side PDF
Built from user complaints

What people hate about the other tools

We read the reviews of the incumbents before writing this page. Every complaint below maps to a decision in the tool above.

  • After hiding unselected size layers in Adobe Reader, saving or sending the file to a print shop resets all hidden layers back into a tangled spiderweb.
    r/sewing & r/sewingpatterns (Reddit) · hidden size layers reset on save
    In this toolParses PDF OCG layers in-browser and bakes only your selected sizes into a permanently flattened A0 PDF.
  • Physically leveling a projector to match a cutting mat grid is maddening, and built-in projector keystone correction distorts the true 1:1 sewing scale.
    r/ProjectorsForSewing (Reddit) · tedious physical grid calibration
    In this toolProvides 4-point homography perspective calibration on a fullscreen ad-free canvas saved in localStorage.
  • Sewists are stuck juggling desktop apps to stitch Letter/A4 tiles into an A0 projector sheet or slice an A0 file into home-printable pages with test squares.
    r/sewing & r/SewingForBeginners (Reddit) · A0 vs Letter/A4 format split
    In this toolUnites Letter/A4-to-A0 stitching and A0-to-Letter/A4 tiling with alignment crosshairs and test squares.

One-line difference: Client-side A0/Letter bi-directional stitcher & tiler, permanent OCG size-layer baker, and 4-point projector calibration.

How this is paid for

Free forever, Pro when you need the paperwork

Free + one-time Pro

Free no signup, no card

  • Fullscreen 4-corner homography projector grid calibration canvas
  • Multi-page US Letter/A4 to seamless A0 pattern sheet stitcher
  • Live OCG size layer toggle, dark-fabric line inverter & bolding

Pro $19 once

  • Permanent single-size OCG layer isolation & flattened A0 PDF export
  • A0-to-Letter/A4 home print tiler with assembly map & 1-inch test square
  • Multi-projector & cutting-table calibration preset JSON backup/restore

Pricing benchmarked against what the incumbents charge. See the full monetization map → · Already paid? Restore access

This file is processed in your browser and is never uploaded — this page carries no ad slot. See all 27 tools · Privacy · How these are paid for