FastestPDF is a free online PDF tool collection — 16 tools covering editing, merging, splitting, compression, conversion, signing and OCR — that you can use right in your browser with no install or sign-up. Your files never leave your device.
What we build
We gathered the PDF work people do over and over into one place: page management like merge, split, delete, rotate and crop; conversions like compress, PDF→text, JPG↔PDF and text→PDF; plus e-signature, watermark, page numbers, form filling and OCR. Every tool page includes a reference table of real options and behaviors, use cases and an FAQ. Stuck on a specific task? Our guides walk through methods by scenario.
Principles
- Files never leave your device — all PDF processing runs client-side in your browser; uploaded files are never sent to a server. Safe for contracts and personal documents.
- No sign-up — no account, no watermark, no usage limits. Free for everyone.
- Documented behavior — the reference tables on each page are written against the actual options and parameters in the implementation.
- Concepts included — every tool ships with usage notes, examples and an FAQ; tricky tasks get dedicated guides.
Sister sites
FastestPDF is part of a family of free web utility sites run by developk. Sister sites under the same principles (no server-side processing, no sign-up) — unit converters FastestUnitConverter, image tools Pixzero, developer tools Developk's Tools, and Korean living calculators Calc — are linked at the bottom of this page.
Contact
For feature suggestions, bug reports or any questions, email us at [email protected]
You can also use the Feedback button at the bottom of every page.