Compress PDF to 500 KB
Need your PDF under 500 KB? The target size is already set — drop your file, and we find the best quality that fits.
How to compress a PDF to 500 KB
Drop your PDF
The target is already set to 500 KB. You can change it if your limit is different.
Click Compress
We try a lossless clean-up first, then step down image quality only as far as needed to fit.
Check and download
You see the exact final size before you download. If 500 KB can’t be reached without wrecking readability, we tell you.
What fits in 500 KB?
At 500 KB scans still read comfortably; fine print and photos lose a little detail when zoomed in. As a rough guide, 500 KB holds roughly 8–20 scanned pages. A PDF made of real text (exported from Word or Google Docs) is far smaller than a scan of the same pages, so it often fits without any quality loss.
We count 500 KB as 500,000 bytes — slightly under what some systems allow (512,000 bytes) — so the file passes either way.
Why people use Compress PDF to 500 KB
“Each document must be under 500 KB.”
Common for transcripts, passport scans and certificates on admission portals.
“Supporting documents: PDF, 500 KB max.”
Bank statements, proof of address and invitation letters for online visa and permit applications.
“Upload pay stubs (max 500 KB).”
Landlord and property-manager portals often have tight per-file limits.
Why not just pick “Strong” compression?
Fixed presets either over-compress (your file is far below 500 KB and blurrier than it needed to be) or under-compress (it’s still too big). A target size keeps the highest quality that still fits your limit — and everything happens on your device, which matters when the document is an ID, a bank statement or a medical record.
500 KB preset
No settings to figure out — the target is already filled in.
Best quality that fits
We stop at the first quality level that gets under the limit.
Honest result
Exact before and after sizes. Never a file larger than your original.
Private
Your file is processed in this browser tab and never uploaded.
Frequently asked questions
How do I compress a PDF to 500 KB?
Drop the PDF on this page and click Compress — the 500 KB target is preset. Download the result once it shows the final size.
How many pages fit in 500 KB?
Roughly 8–20 scanned pages at readable quality. If you have more, split the document into parts with Split PDF and compress each one.
Should I pick 500 KB even if the limit is higher?
No — pick the limit you actually have. The higher the target, the better the quality we can keep.
What if it can’t get under 500 KB?
We show the smallest readable result and say so. Remove unneeded pages with Delete PDF Pages, or split the file into parts with Split PDF and compress each.
Are my files uploaded anywhere?
No. Your files are opened and processed by code running in this browser tab. Nothing is sent to a server — you can confirm it in your browser’s Network panel, or by turning off Wi-Fi after the page loads.
Is it really free?
Yes. No daily limits, no sign-up and no watermark. Because the work happens on your device, it costs us nothing to run — the site is supported by unobtrusive ads.