How to connect broken outlines for paper cutting artists

Connect broken outlines for paper cutting artists: find each gap, close it step by step, and check the result before you cut.

By TexHouse · 2026-10-22

TexHouse is published by the makers of LunarWerx 3D Print, Vector3D and MeshyDL, which are compared here alongside other tools.

Connecting broken outlines means finding each gap, closing it so the line runs unbroken, and checking the result before you cut. VectorMagik is one option for the tracing step: it traces a picture into vector shapes using its own engine ^[1].

Option	What it does	Fee
VectorMagik	Traces a picture into vector shapes using its own engine ^[1]	Free for everyone; business use needs a licence (PolyForm Noncommercial 1.0.0) ^[1]
Other vector tools	Not covered by the facts on this page; check each tool's own page	not published

What you need before you start

Start with a clear image of the design. A scan or photo with even lighting shows the outline better than a dim one, and a flat, square crop keeps the lines true. Keep the original drawing or cut template nearby, because you will compare the connected lines against it.

Have a drawing app or vector editor ready, with a fine line tool or a node tool, so you can move points and close small openings by hand. A cutting mat, a sharp craft knife or blade, and a spare sheet of paper let you test a cut before you commit the real piece.

Decide how thick the finished line should be, since that sets how much a gap can be closed without losing detail. Mark each break with a pencil note on a printout, so no gap is missed. A short written list of the broken areas keeps the work organized from start to finish.

Step by step

Look at the whole design at actual size and mark every place where the outline stops. Tiny breaks are easiest to miss when you only view a zoomed-in section.
Check each break against the original. Some gaps come from scanning or tracing, and some are intended, so decide which ones need closing.
Zoom in on a break and line up the two ends so they sit exactly on each other.
Close the gap with a short stroke that follows the flow of the line. Keep the stroke as thin as the rest of the outline.
Smooth the join where the two pieces meet. A small kink can catch the blade or tear the paper.
Repeat for the next break, then view the entire outline at once to confirm the path runs continuously from start to end.
Print the design or a test shape on scrap paper and cut a sample. Any gap that remains will show up in the test, and it is cheaper to fix it now than after cutting the final piece.

Tools that can do it

VectorMagik is made by the team that publishes this site. The trace turns a picture into vector shapes using its own engine ^[1]. A tolerance slider merges neighbouring curve pieces, and Auto picks the largest tolerance that keeps the picture ^[1].

You can click shapes to delete them, such as a background, or merge two shades into one ^[1]. You can limit the result to between 1 and 64 colours ^[1]. After converting, you can move or delete curve nodes and round individual corners ^[1].

You can compare the vector with the bitmap side by side, or flip between them with B and V keys ^[1]. The side-by-side view puts the vector and the bitmap next to each other, so you can check the traced lines against the original. You can save the result as SVG, PDF, EPS, AI, DXF, EMF or PNG ^[1].

You can download it for your computer, or use the browser version, which runs on the same engine ^[1] ^[1].

This page has no published facts about other tools, so check each tool's own page for what it does and what it costs before you choose one.

Common mistakes to avoid

Closing a gap with a stroke much thicker than the line leaves a visible bump. Match the width of the existing outline before you start.

Joining two pieces at slightly different points leaves a notch that catches the blade. Zoom in and line up the ends first.

Deleting a shape you need, such as a thin border, removes part of the outline. Check the shape carefully before you delete it, and keep a copy of the original.

Too many small colour areas can split one outline into many separate pieces. Simplify the design before you trace it, so the outline stays in one continuous run.

Skipping the test cut wastes finished paper. A short test on scrap shows any remaining break while it is still easy to fix.

Frequently asked questions

Is VectorMagik free to use?

VectorMagik is free for everyone, and business use needs a licence ^[1]. It is licensed under PolyForm Noncommercial 1.0.0 ^[1]. Read the licence text before you use the output for work that earns money, so you know which uses it covers. The licence is the place to confirm the details before you rely on them.

What can VectorMagik do with a traced outline?

VectorMagik traces a picture into vector shapes using its own engine ^[1]. After converting, you can move or delete curve nodes and round individual corners ^[1]. You can also click shapes to delete them or merge two shades into one ^[1]. Close any remaining gaps by hand in your drawing app before you cut.

How do you check a traced outline for breaks before cutting?

Compare the vector with the bitmap side by side, or flip between them with the B and V keys ^[1]. Zoom in on each area where the original line was unbroken and confirm the traced line is continuous there. Then print a test on scrap paper and cut a sample, since a test shows gaps that are hard to see on screen.

Which file formats can VectorMagik save?

You can save the result as SVG, PDF, EPS, AI, DXF, EMF or PNG ^[1]. Choose the format that the program or print service you plan to use accepts. Check that format before you export, since a file one program opens easily may not open in another.

Which computers can run VectorMagik?