Compress PDF to 300KB

Drop your PDF into the box above and press Compress. The tool is already set to a 300KB target, so it automatically applies the lightest compression that gets you under 300KB, then hands you a download link. The whole process happens on your own device.

Most can. Text-heavy documents compress dramatically. Very long scanned documents — say 100+ pages of high-resolution photographs — may not reach 300KB while staying readable. In that case we return the smallest usable version and tell you the target was missed, so you can split the document instead.

We always try the gentlest setting first and only escalate if the file is still too large. For typical business documents at 300KB, text stays perfectly sharp because it remains real vector text — only embedded images are downsampled.

Yes, with no file limits, no watermarks and no account. Because processing happens on your device rather than our servers, there is no per-file cost to recover and therefore no reason to meter your usage.

Your PDF was probably already optimized — for instance exported by Acrobat with compression enabled, or generated as pure text with subset fonts. When we cannot beat the original we deliberately return your untouched file rather than a worse one.

Yes, and this is usually desirable. Author names, the originating software, revision history, comment threads and XMP blocks are stripped. That reduces file size and removes information you may not want to share — a genuine privacy benefit when sending documents externally.

It is gone from the page entirely. The document is held only in the tab's volatile memory during processing and is discarded when the tab closes. Nothing is written to browser storage, no cookie records it, and no copy exists anywhere else — your original stays untouched on disk.

Not directly. Encrypted PDFs must have their password removed first, which you can do in Acrobat, Preview on macOS, or by opening the file and re-printing it to PDF with the password supplied. Then compress the unprotected copy here.

Yes. Bookmarks, the table of contents, internal cross-references, hyperlink annotations and interactive form fields all survive compression. Only the encoding of images and content streams is altered — the document's structural and navigational layers are preserved.

Any modern browser with WebAssembly support: Chrome, Edge, Firefox, Safari, Brave, Opera and Vivaldi, on desktop and mobile alike. There is no minimum specification beyond that — older or lower-powered devices simply take longer on large documents.