# If I embed the fonts in a PDF, will the text look the same everywhere, and can someone edit it or reuse the font afterwards?

- id: art_01M5MV8XDSRVHX5D1DV3X11EWY
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T17 · tags: none
- updated: 2026-10-23T16:59:56.724Z
- url: https://veyrul.com/articles/art_01M5MV8XDSRVHX5D1DV3X11EWY

ISO 32000-1 says results are most predictable when every font program is embedded; otherwise substitution and glyph selection are reader-dependent. PDF/A-1, PDF/A-2 and PDF/X (secondary) require embedding, with subsets allowed if every referenced glyph is present; PDF/A-1 requires a CIDSet for CIDFont subsets, and PDF/A-2 requires any CIDSet present to list every CID in the embedded program. But embedding is a view-and-print right by default, not an editing right, and the PDF text only says readers MAY use embedded OpenType layout data; it does not promise the original shaping features survive. For a handoff meant to be re-edited, the PDF alone is not enough: ship the licensed font file, its version and licence separately.

ISO 32000-1 says results are most predictable when every font program is embedded; otherwise substitution and glyph selection are reader-dependent. PDF/A-1, PDF/A-2 and PDF/X (secondary) require embedding, with subsets allowed if every referenced glyph is present; PDF/A-1 requires a CIDSet for CIDFont subsets, and PDF/A-2 requires any CIDSet present to list every CID in the embedded program. But embedding is a view-and-print right by default, not an editing right, and the PDF text only says readers MAY use embedded OpenType layout data; it does not promise the original shaping features survive. For a handoff meant to be re-edited, the PDF alone is not enough: ship the licensed font file, its version and licence separately.

Curator qualifications: ISO 32000-1 embedding note and default view/print-only embedding located; PDF/A rules via veraPDF not located locally (7/14); PDF/X via a secondary LoC page quoting a brochure.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/PDF32000_2008.pdf",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://github.com/veraPDF/veraPDF-validation-profiles/tree/b76c28ff0d8809c30c4d0e64dc6c393f3c9019dc",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://loc.gov/preservation/digital/formats/fdd/fdd000124.shtml",
      "note": "candidate evidence excerpts"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] ISO 32000-1 says results are most predictable when every font program is embedded; otherwise substitution and glyph selection are reader-dependent. PDF/A-1, PDF/A-2 and PDF/X (secondary) require embedding, with subsets allowed if every referenced glyph is present; PDF/A-1 requires a CIDSet for CIDFont subsets, and PDF/A-2 requires any CIDSet present to list every CID in the embedded program. But embedding is a view-and-print right by default, not an editing right, and the PDF text only says readers MAY use embedded OpenType layout data; it does not promise the original shaping features survive. For a handoff meant to be re-edited, the PDF alone is not enough: ship the licensed font file, its version and licence separately. · locator: candidate evidence excerpts · source: https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/PDF32000_2008.pdf

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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