Online Tool Store
PDF Font Inspector
List every font in a PDF with embedding and subset status, which pages each appears on, and copy or export the list as CSV — in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
How the PDF font inspector works
- Choose a PDF.
- The tool scans every page's drawing instructions for font references, resolving each one to its actual name, type, and embedding status.
- Every distinct font is listed once, flagged as a subset if its name follows the standard subset-tag convention, along with which pages it appears on.
- Copy the list or download it as a CSV file.
FAQ
Why does a font name have a random prefix like "ABCDEF+"?
That's a subset tag PDF generators commonly add when they embed only the specific characters actually used from a font, rather than the whole font file — it keeps file size down. The letters before the "+" are usually random and don't mean anything on their own.
What does "Embedded: No" mean?
It means the PDF is referencing one of the 14 standard PDF fonts (like Helvetica or Times) that every PDF reader is required to support, rather than embedding actual font data — so the file stays smaller but relies on the reader to supply that font.
Why does scanning take a moment?
Each page has to be rendered internally (to a small, invisible canvas) to force the PDF engine to resolve which fonts it actually uses — this happens automatically and doesn't display anything, but it does take a brief moment per page.
Is my PDF uploaded anywhere?
No. Every page is processed entirely in your browser — the file is never sent to Online Tool Store or any other server.
What does the "Subset" column mean?
It checks the font name against the PDF spec's subset-tag convention (ISO 32000-1 §9.6.4): exactly six uppercase letters followed by a plus sign, like "ABCDEF+Helvetica". A subset font only embeds the specific glyphs the document actually uses, not the whole font file.
Can I export the font list?
Yes — "Copy list" copies a tab-separated table to your clipboard, and "Download CSV" saves the same data as a .csv file for a spreadsheet.
How we compare
| Feature | Online Tool Store | Adobe Acrobat "Document Properties → Fonts" | pdffonts (command line, part of Poppler) |
|---|---|---|---|
| No install required | ✓ | Desktop app install | Command-line tool |
| Shows which pages use each font | ✓ | Not shown | Not shown |
| Flags subset fonts | ✓ | Not shown | ✓ |
| Copy or export the list (CSV) | ✓ | Not built in | Redirect output to a file |
| File never uploaded to a server | ✓ | ✓ | ✓ |
For a quick font check without installing Acrobat or a command-line tool, the Online Tool Store PDF Font Inspector lists every font right in your browser.