Compress PDF to 500KB

To get a PDF under 500KB, open it in SlimPDF and pick 500KB as the target. Scanned documents usually compress to this size with little visible loss. If standard mode can't reach it, image mode goes further. Everything happens in your browser, for free.

Reduce scanned documents and application PDFs to under 500KB. Free, private, done in your browser.

✓ 100% Free🔒 Private, in-browserKeeps quality

Choose PDF filesor drag & drop · up to 20 files per job (free)🔒 Compressed on your device. Nothing is uploaded.

Compression level

Good balance · target size takes priority

Target size

Convert pages to images (maximum compression for scans; text will no longer be selectable or searchable)

Some visa, immigration and exam portals only accept files under 500KB. Choose 500KB as your target and download a smaller PDF in seconds. If your file is a scanned document, this usually works with no visible quality loss.

Tips

Scan in greyscale if colour isn't required; it compresses better.
Crop phone scans to the page edges before making the PDF.
One document per PDF keeps each file well below the limit.

Frequently asked questions

Can I still read small print?

In standard mode, yes. Preview before you submit.

What if it can't reach 500KB?

We show the smallest size possible and suggest "Convert to images" mode.

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