Tiny Toolkit

Compress PDF — Reduce PDF File Size Online

Reduce a PDF's file size by re-rendering each page at a chosen resolution and JPEG quality. Works best on scanned documents and image-heavy PDFs, where it can meaningfully shrink the file; text-based PDFs may not benefit since rasterizing vector text is less space-efficient than the original. The tool shows you the before/after size so you can judge whether it actually helped before relying on the result.

All processing happens in your browser. No data is sent to any server.

Frequently Asked Questions

Why did my PDF get bigger instead of smaller?
This tool re-renders each page as a JPEG image, which only saves space when the original page is already image-heavy (like a scan). For PDFs made mostly of vector text, rasterizing tends to produce a larger file than the original — the tool shows you the before/after size so you can tell before relying on the result.
What resolution and quality should I use?
Start with Medium resolution and 60% quality. Lower both for smaller file size at the cost of legibility; raise them if the compressed pages look too blurry.
Does this preserve selectable text?
No. Because each page becomes an image, any text on the page is no longer selectable or searchable in the output. If you need to keep text selectable, this isn't the right tool.

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