Reduce PDF file size until it fits the upload limit you have been given — 2 MB, 5 MB, whatever the portal demands. Immigration applications, court e-filing and case management systems all reject oversized files, and this gets you under the cap without installing anything. Your PDF is never uploaded: compression happens inside this browser tab.
Drop PDFs here, or click to choose
Multiple files are fine. Nothing is uploaded.
Note: pages are rebuilt as images, so text stops being selectable or searchable. That is the right trade for scans and photographed documents. For a born-digital PDF that must keep its text layer, don't use this yet.
Drag it onto the box above or click to browse. Several files at once is fine — each is compressed separately and downloaded separately.
Type the maximum size the portal accepts. The tool tries a series of resolution and quality settings and stops at the first that fits, so it never degrades the document more than your limit requires.
You will see the before and after size and the exact settings used. If a file is already small enough to gain nothing, the tool says so instead of handing back a worse copy.
Application portals reject oversized uploads, and a stuck submission usually means a scanned passport, birth certificate or bank statement that is far larger than it needs to be. Those are exactly the documents you should not be posting to an anonymous compression service.
Evidence bundles and affidavit exhibits routinely blow past filing limits. Because nothing is uploaded here, there is no third-party copy of a privileged document to account for.
Office scanners and phone cameras produce enormous PDFs — a handful of pages can run to tens of megabytes. This is the case where compression gains the most, typically 90–97%.
Recruitment systems and government forms often cap attachments at a few megabytes. Set the cap, compress, upload, done.
Compression runs as WebAssembly and canvas work inside this tab. Your passport scans, affidavits and client files are never transmitted, never written to a server, and never queued in anyone's storage bucket. Close the tab and nothing remains. Once the page has loaded you can disconnect from the internet entirely and it still works.
Most free PDF compressors work the opposite way: your document is sent to their servers, processed there, and retained for some period stated in a privacy policy you did not read. For ordinary files that is nothing to worry about. For a client's identity documents it is a disclosure you may not be entitled to make.
Every page is rendered at a chosen resolution and re-encoded as a JPEG, then repackaged into a fresh PDF. On scanned documents this flattens oversized embedded images and drops redundant structure — typically a 90–97% reduction, where object-level recompression manages far less.
The trade-off is that output pages are images, so selectable text is lost. Scans have no real text layer to begin with, which is why this approach suits them and does not suit a born-digital contract.
Choose "Fit a limit", enter 2 MB, and press Compress. The tool works down a ladder of resolution and quality settings and stops at the first one that gets under your limit, so it does not degrade the file more than it has to.
No. Compression runs inside your browser tab using WebAssembly and canvas rendering. The file is never transmitted, never stored, and never queued anywhere. You can disconnect from the internet after the page loads and it still works.
Because nothing is uploaded, there is no server copy to secure, subpoena or breach. This matters for passport scans, evidence bundles and client files where sending a document to a third-party service may itself be the problem.
No. Pages are rebuilt as images, so text stops being selectable or searchable. That is the right trade for scans and photographed documents, which have no real text layer to begin with. For a born-digital PDF that must keep selectable text, this tool is not the right choice.
For scanned documents, typically 90 to 97 percent smaller. A 17.7 MB scan tested at a 2 MB target came out at 820 KB, and 202 KB in grayscale at the smallest setting. Already-compressed PDFs will gain much less, and the tool tells you when there is nothing to gain.
No watermark, no sign-up, no page limit and no per-file cap imposed by us. The practical ceiling is your device's memory, since the work happens locally. Very large files on an older phone may run out of memory.
Yes, in any modern mobile browser. Large scans take longer and use more memory on a phone than on a laptop, so for a very large bundle a computer is more reliable.
Not currently. Remove the password in your PDF reader first, then compress. The tool will tell you if a file is protected rather than failing silently.