Quick answer: To compress a PDF to 500 KB, open it here, keep the 500 KB target (or pick 200 KB, 300 KB or 1 MB) and download the result. Photos inside the PDF are shrunk first; only if that is not enough are pages turned into images. Three to five scanned pages usually stay clear at 500 KB, and the file never leaves your device.
Half a megabyte is room for several scanned pages, as long as they are compressed sensibly. Pick 500 KB and the PDF is shrunk just enough to fit, keeping text selectable when it can.
Compress PDF to 500 KB at a glance
| Price | Free, no sign-up, no watermark, no daily limit |
|---|---|
| Accepts | |
| Largest file | 50 MB per file |
| Where it runs | In your browser: files are never uploaded |
| Works on | Any modern browser on iPhone, Android, Windows, Mac and Linux |
| Send the result | Download it, or send it free with a link or by email (up to 20 GB) |
How to compress PDF to 500 KB
- Choose the PDF: several scanned pages, mark sheets, statements or a combined application.
- Keep 500 KB, or pick 200 KB, 300 KB or 1 MB to match the portal.
- Press Compress to target.
- Scroll through the result to check every page, then download it.
How many pages fit in 500 KB
| Document | At 500 KB |
|---|---|
| Bank statement or e-statement downloaded as PDF | Usually already under; text stays selectable |
| 3 to 5 scanned pages | Clear and readable |
| 6 to 10 scanned pages | Readable, small print gets soft |
| More than 10 scanned pages | Split it, or choose 1 MB if the portal allows |
Typical results only: colour photos of pages take more space than clean black and white scans.
Several documents, one upload
Portals sometimes want mark sheets, certificates or statements for several years as one PDF with a single size limit. Put the pages together with Merge PDF (or JPG to PDF for photos of pages), then compress the combined file here. Compressing once at the end gives better results than squeezing each part first and merging afterwards.
If the portal has one upload per document instead, split the PDF and compress each part with compress PDF to 200 KB.
Text stays selectable when it can
The first step only shrinks the photos inside the PDF (to about 1400 pixels at a lower quality) and leaves text, fonts and links alone. A downloaded statement or a typed application with a few images usually fits at this step, so the text can still be searched and copied. Scans need the second step, where pages are redrawn as images at falling resolution, from 120 dpi down to 50 dpi; the result tells you which step it used.
Everything happens in your browser, so statements, IDs and mark sheets are never uploaded to us.
How this compares
| This tool | Online converters (e.g. iLovePDF, Smallpdf or Adobe Acrobat online) | Desktop apps (e.g. Adobe Acrobat Pro) | |
|---|---|---|---|
| Your file is uploaded | No | Yes, to their servers | No |
| Install or account | None | Account for some features | Install needed |
| Watermark or daily limits | None | Common on free plans | Depends on the app |
Plans of other services change; check their sites. More pdf tools.
Frequently asked questions
How do I compress a PDF to 500 KB?
Open it here, keep the 500 KB target and press Compress to target. The tool tries the gentlest method first and stops as soon as the file is under 500 KB.
Should I merge first or compress first?
Merge first, then compress the combined PDF once. That gives the best quality for the size.
What if it will not fit in 500 KB?
You get the smallest readable version with a note. Remove unneeded pages, split the document, or choose 1 MB if the portal allows it.
Is my PDF uploaded?
No. It is compressed on your device and never leaves it.
Need to send a big file?
Send files up to 20 GB with a download link or by email. Free, no account needed, original quality.
Send large files free