Is PDF Font Detector safe to use?

Yes, PDF Font Detector is completely safe. Unlike other tools that upload files to external servers, PDF Toolkit processes all files 100% locally in your web browser. Your private documents never leave your device.

Can I use PDF Font Detector offline?

Yes, once the website loads, all operations work completely offline. You can process your documents without an internet connection.

Why do I need to check what fonts are in a PDF?

If you share a PDF containing fonts that are not embedded, the recipient's PDF reader will substitute those fonts with default system fonts. This will break the typography alignment, formatting, and overall visual design.

What is the difference between an embedded and a referenced font in PDF?

An embedded font packs the typography asset files directly inside the PDF binary. A referenced font only stores a pointer to the font name, expecting the recipient's computer or print shop to have that exact font pre-installed.

How can I tell if my PDF will look the same on other computers?

Audit your PDF here. If all fonts have an "Embedded" status badge, you are 100% safe. If you see "Referenced" fonts, try to re-save your PDF with the "Embed Fonts" option checked inside your PDF editor.

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🔤 PDF Font Detector

Detect and audit all the fonts used inside your PDF document. Inspect font types and embedded structures locally.

Your file never leaves your device. All processing happens locally in your browser.

How to Detect & Audit Fonts in Any PDF Document

Discover every typeface embedded in your PDF, identify TrueType/OpenType formats, and check for missing or un-embedded fonts.

Upload PDF

Drag and drop your PDF file. The browser inspects internal FontDescriptor dictionaries directly in RAM.

Audit Typography

View full font family names, encoding types (TrueType, OpenType, CIDFont), and subset tags.

Flag Missing Fonts

Instantly identify un-embedded referenced fonts that could cause layout shifts or font substitution.

Export Report

Copy font names to clipboard or export a detailed font preflight audit report as a CSV spreadsheet.

🔤

100% In-RAM Typography Preflight & Font Auditing

Auditing client brand guidelines or print submissions shouldn\'t involve uploading confidential documents to cloud services. All font detection happens locally inside browser memory.

✓ 100% In-Browser Detection✓ Detects TrueType, OpenType & Type 1✓ Checks Embedded vs Referenced✓ Export Audit to CSV

Frequently Asked Questions

If you distribute a PDF containing fonts that are not embedded, the recipient's viewer will substitute default system fonts. This breaks kerning, margins, line wrapping, and professional visual branding.

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