Files never leave your device.How it works
How to compress a PDF to 500 KB
- 1Drop your PDF above (or click to select).
- 2Click Compress — we search for the highest quality that stays under 500 KB.
- 3Download the result, or see the smallest we could reach if 500 KB isn't possible.
Frequently asked questions
- Is 500 KB a good balance?
- Often yes — 500 KB is roomy enough to keep images looking good while staying small enough for most email and upload limits.
- What kinds of PDFs shrink the most?
- Scanned documents and image-heavy PDFs shrink the most. Text-only PDFs are already small, so there's little to remove.
- Do my files get uploaded?
- No — everything runs in your browser. Your PDF never leaves your device.
500 KB: small enough to send, big enough to look good
500 KB is the comfortable middle ground. It clears most email attachment checks and upload forms while leaving enough headroom that photos, diagrams, and multi-page scans still look crisp. If 100 KB or 200 KB forced too much quality loss on your document, 500 KB is usually where images stop looking soft.
Best for image-rich and multi-page documents
This target shines on a portfolio with photographs, a report with charts and screenshots, or a scanned booklet of several pages. Because HivePDF re-encodes images per page and keeps real text selectable, you get a noticeably smaller file that still reads and prints well. If your document slips under 500 KB easily, you'll simply get a higher-quality result.
A safe default when you're not sure what's needed
If nothing tells you exactly how small a file needs to be — a portal just says "keep it reasonable," or you're archiving your own scanned records — 500 KB is a sensible default. It's small enough to never worry about email or storage limits, yet loose enough that you won't notice the compression on a typical multi-page document with a few images.
Compress last, not first
Do any editing — adding a watermark, inserting page numbers, merging in extra pages — before you compress, not after. Each of those operations adds its own small amount of new content to the file, and compressing first only to add more afterward means the final file creeps back up past the size you targeted. Run compression as the last step before you send or upload the result.
Photos and portfolios
A PDF built from several full-resolution photographs — a portfolio, a product catalogue, a set of before-and-after images — is where 500 KB shows its limits most clearly, more than a file with just a couple of images mixed into plain text. If the result looks softer than you'd like, splitting the images out with Extract Images and sharing them separately, alongside a lighter text-only PDF, often serves viewers better than forcing everything through one small file.