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Font to Outline

docs/tools/font-to-outline.md

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Font to Outline

Converting fonts to outlines transforms every text character from a font-based glyph into a vector path. The PDF no longer depends on any installed fonts -- it renders identically on every device, every operating system, and every printer. This is a standard step in prepress workflows.

How It Works

  1. Upload one or more PDF files.
  2. Click Convert to Outlines.
  3. Ghostscript converts all text to vector paths.
  4. Download the result. Multiple files produce a ZIP archive.

There are no settings to configure. The tool uses Ghostscript (WebAssembly) to convert all font references to outlined paths in a single pass.

What Changes

  • Text characters become vector curves (bezier paths)
  • Font embedding is no longer necessary -- the PDF is self-contained at the glyph level
  • File size may increase because vector paths are typically larger than font references
  • Visual appearance is preserved exactly

What You Lose

  • Text selection and copy-paste
  • Text searchability (Ctrl+F stops working)
  • The ability to edit text content
  • Screen reader accessibility

Use Cases

  • Sending PDFs to a print shop that requires outlined fonts
  • Sharing documents that use custom or licensed fonts with people who do not have those fonts
  • Preventing font substitution that changes the look of your document on other systems
  • Preparing PDFs for laser engraving or CNC cutting workflows that require vector input
  • Ensuring a logo-heavy PDF displays correctly across all platforms

Tips

  • Keep your original PDF. Outlining is irreversible -- you cannot convert paths back to editable text.
  • If you need the text to remain searchable, consider the Rasterize PDF tool with OCR as a follow-up instead.
  • Outlined PDFs tend to be larger. Run Compress PDF afterward if file size matters.
  • Flatten PDF -- flatten forms and annotations without touching fonts
  • Rasterize PDF -- convert to image-based PDF instead of vector outlines
  • Compress PDF -- reduce file size after outlining
  • PDF to PDF/A -- convert for archival after ensuring font independence