Compress PDF
Reduce PDF size without losing quality.
Optimization right in your browser. No server uploads.
Drag & drop a PDF or click to browse
PDF only · Max 100 MB · Local, your files stay private
How to use Compress PDF
- 1Click the drop area or drag your PDF file in.
- 2Choose a compression level (light, medium, or maximum).
- 3Click "Compress PDF" to start the local compression.
- 4Download the compressed PDF once the compression is done.
Practical guide: Compress PDF
Why use this tool?
Reducing PDF size is essential for email attachments, cloud storage and online forms with file size limits. This tool compresses embedded images and strips unnecessary metadata to lighten the file without visible quality loss. Used by architects, lawyers, teachers and anyone sharing documents regularly.
For job applications or public tenders with a strict 2–5 MB limit, this tool helps you comply without cutting content.
Privacy and limits
Compression runs locally in your browser. Your documents — blueprints, medical records, legal filings — never pass through our servers. You retain full control over your data.
Compress PDF is designed to be free, fast and available without creating an account. It suits freelancers, students, marketing teams, developers and small businesses that need to handle a task efficiently.
Best practices
- Compression works best on PDFs with many embedded images.
- Already-compressed PDFs or text-only PDFs will gain little.
- Verify the result is still readable before sending.
Related searches: compress pdf, compresser pdf, reduce pdf size, pdf optimizer.
Frequently asked questions
Are my files sent to any server?⌄
No. Compression uses pdf-lib and runs entirely in your browser. Your files never leave your computer.
How much size reduction can I expect?⌄
It depends on the content. PDFs produced by Word, Google Docs, or browsers often shrink by 15–40% after optimization. Already optimized PDFs or those with many compressed images will gain less.
Is this lossy compression?⌄
No, this version is lossless. It optimizes file structure (object streams, useless metadata, etc.) without touching image or text quality.
Why didn't my PDF shrink much?⌄
If your PDF contains uncompressed high-resolution images, gains will be small. For aggressive compression with image downsampling, dedicated paid tools exist.
Does the tool support password-protected PDFs?⌄
No. Password-protected PDFs must be unlocked before compression.
Is the tool really free?⌄
Yes. SOLVYNOR funds the platform with advertising and our custom engineering services.
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