PDF tools
Merge, split, compress and convert PDFs without uploading them anywhere.
These are the everyday PDF jobs: joining several files into one, pulling a range of pages out, shrinking a document that is too heavy to email, turning pages into images or images into a document, and adding or removing a password. All of them run on your own machine using the same rendering engine your browser already uses to display PDFs, so the file never leaves the tab. That matters more for PDFs than for most formats, because a PDF is usually the finished version of something private: a contract, an invoice, a scan of an ID, a medical result.
Tools in this category
17About these tools
Why compressing a PDF is not one setting
A PDF can be heavy for two very different reasons. If it came from a scanner or a phone it is really a stack of photographs, and almost all of the weight is image data, so re-encoding those images is what shrinks it. If it was exported from a text editor the pages are vector instructions plus embedded fonts, and there is far less to squeeze. The compressor works on the first case, which is the case that actually blocks your email attachment.
Passwords: protecting versus unlocking
Adding a password encrypts the document so it cannot be opened without the phrase you choose, which is worth doing before you send anything sensitive over email or chat. Removing one only works when you can already open the file — the tool decrypts a document you have the password for so you can save a copy without the prompt. It is not a cracking tool, and no tool that respects your data would claim to be.
Page order, rotation and splitting
Scanners produce sideways pages, double-sided feeds produce reversed halves, and long reports usually need one chapter rather than all of it. Rotating, reordering and splitting are cheap operations because they rewrite the page tree without touching the page contents, so the output keeps the exact visual quality of the original. Nothing is re-encoded and nothing is resampled.