🔤 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.
See and Audit Font Files Used in Any PDF
Need to verify if your document will look correct when opened on another computer? Our client-side PDF Font Detector audits and lists every font family embedded inside your file. It reports font names, technical types (TrueType, OpenType, CIDFont, Type 1, etc.), and checks whether the actual glyph files are fully embedded inside the document stream.
If a font is not embedded, the system raises a warning. Referenced system fonts may cause rendering issues or text shifts when shared. You can copy the raw names to your clipboard or download the report as a CSV document. Like all PDF Toolkit utilities, this auditing occurs completely offline inside your web browser RAM for optimal privacy.
Frequently Asked Questions
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.