Compress PDF Free Online
Shrink PDF file size in your browser — great for email attachments and portals.
Drop a PDF to compress
Compression rewrites the PDF structure for a smaller file. Scanned image-heavy PDFs may need PDF → Image → lower quality → Image → PDF for larger savings.
How to use this tool
- Drop the PDF you want to shrink.
- Click Compress PDF.
- Download the smaller file and check the new size.
Tips for smaller PDFs
Text-based exports from Word or Google Docs usually compress well. Huge scanned binders are mostly images — try PDF to Image, compress those images, then rebuild with Image to PDF.
Why use FreeTools?
Unlike many online utilities, FreeTools processes your files in the browser using modern Web APIs and WASM libraries. That means faster results on your machine, no waiting for uploads, and a clear privacy story: we never see your documents or photos. No account is required — open the page, drop a file, download the result.
FAQ
Will compression always get under 1MB?+
It depends on the source. Structure-level compression helps most text PDFs. Image-heavy scans may need converting pages to lower-quality images first.
Is quality reduced?+
This tool rewrites the PDF efficiently without re-encoding every image aggressively. For stronger size cuts, use PDF to Image then Image to PDF.
Do you store my PDF?+
No. Compression runs locally in your browser.
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