Guides to everyday PDF tasks
Each guide walks through one task with the tools on this site, shows what to expect from measurements on our own sample files, and says where the limits are. The guides are in English for now; the tools themselves speak nine languages.
How to compress a PDF under 200 KB without losing the text
A step-by-step way to get a PDF under a size limit in your browser, what the result looks like on real files, and what to do when it will not go lower.
· 6 min read
Why a PDF will not compress, and what makes PDFs large
Pictures, fonts, drawings, attachments and leftovers: what takes the space in a PDF, a one-minute test to tell which one is yours, and what to do about each.
· 6 min read
Make a scanned PDF searchable with OCR, without uploading it
How to turn a scan or a photographed document into a PDF you can search, copy from and edit, in your browser, with the accuracy measured on Hindi and Telugu scans.
· 7 min read
Redact a PDF permanently: remove the text, not just cover it
Why a black box drawn over a PDF hides nothing, how to remove text, pictures and comments for good in your browser, and how to check that they are gone.
· 6 min read