SqueezePDFCompress PDF to 300KBfree & private
Whether it's a job application or an upload form, 300KB is a common ceiling. The tool tries multiple quality levels in your browser and keeps the highest one that stays under 300KB.
Drop PDF files here
or click to choose files
100% private — files never leave your device
How the 300 KB target works
The compressor tries up to seven quality levels in your browser, from 150 DPI (print quality) down to 30 DPI (maximum compression). It stops at the first level that produces a file under 300 KB, so you always get the best possible quality that fits the limit — no guesswork, no repeated manual attempts.
Need a different size?
Frequently asked questions
How do I compress a PDF to under 300 KB?+
Drop your PDF into the tool above. It automatically compresses the file at several quality levels — from 150 DPI down to 30 DPI — and keeps the highest quality version that is smaller than 300 KB. Nothing is uploaded; everything happens in your browser.
What if my PDF can't be compressed to 300 KB?+
Very long or image-heavy documents sometimes can't reach 300 KB without becoming unreadable. In that case the tool keeps the smallest version it could produce and tells you the target wasn't reached. Splitting the document into parts is usually the best next step.
Will my file be uploaded to a server?+
No. This compressor runs entirely inside your browser. Your PDF never leaves your device, which makes it safe for sensitive documents like IDs, contracts and certificates.
Is there a limit on file size or number of files?+
No limits and no sign-up. You can compress as many PDFs to 300 KB as you need, free of charge, with no watermarks.
Why do upload forms have size limits like 300 KB?+
Portals cap upload sizes to keep storage and bandwidth costs down. Scanned PDFs are usually far larger than necessary because they embed high-resolution images — downsampling those images shrinks the file dramatically without affecting the text.