Subset PDF fonts
Drop unused glyphs from embedded fonts to shrink file size.
- PDF & Office
- Free to use
- Server processed
Add your file
Run Subset PDF Fonts
Processed on our servers. Uploaded over TLS and deleted an hour later — 24 hours if you are signed in.
Three steps
How to use Subset PDF Fonts
- Step 01
Pick your input
Drag a single application/pdf into the upload area, or click to browse.
- Step 02
Configure & run
Click Run — there is nothing to configure. We process the file on our own infrastructure — no third-party APIs in the path.
- Step 03
Download the result
A single application/pdf is downloadable below the form.
Server-processed files are encrypted at rest with a per-tenant key and deleted an hour after upload — 24 hours if you are signed in. We do not use third-party processing APIs.
About subset pdf fonts
Subset embedded fonts to drop unused glyphs and reduce PDF size. It sits in the pdf & office shelf alongside 83 other pdf & office tools, needs no account, and keeps the same behaviour whether you open it here or call it through the REST API.
It takes a file in PDF and gives back PDF. It is built for files larger than the usual upload ceiling. The work happens on our servers, and the upload is encrypted per file and deleted an hour later — 24 hours if you are signed in. The same operation is available programmatically at POST /v1/pdf/subset-fonts.
Subset PDF Fonts questions
Where does Subset PDF Fonts process my file?
On our own servers. This tool needs more than a browser tab can provide, so the file is uploaded over TLS, processed on our infrastructure — no third-party processing APIs are in the path — and both the input and the result are deleted within an hour.
Can I run Subset PDF Fonts on several files at once?
Yes. Subset PDF Fonts takes one file at a time, so selecting several runs it once per file, one after another, and you get a result for each.
Do I need an account to use Subset PDF Fonts?
No. Subset PDF Fonts works without signing in, and that is not a trial — it is how the free tier works. An account only matters for things that need one to exist at all: larger server jobs against your quota, API keys, saved workflows and billing.
Can I run Subset PDF Fonts from my own code?
Yes. Every tool on the site is reachable from the REST API with the same slug — `pdf-subset-fonts` — and the same options as this page, so anything you can do here you can automate against your own files.
Related tools
- Invoice GeneratorGenerate a professional PDF invoice from line items.
- Markdown to PDFRender Markdown into a clean PDF.
- Resume / CV BuilderFill a JSON form, get a polished PDF resume.
- Compress ImageSmart lossy compression for the web.
- SVG OptimizerSVGO — drop metadata, round numbers, kill unused defs.
- Compress VideoReduce video size for sharing or upload.