Reduce PDF file size online — choose your quality preset to balance size vs. clarity.
Pick a PDF, choose a compression level, and create a smaller file for email, sharing, archiving, or faster downloads.
| Preset | DPI | Best for |
|---|---|---|
| 🗜️ Maximum | 72 | Email attachments, web uploads |
| 📖 Recommended | 150 | General documents, archiving |
| 🖨️ High Quality | 300 | Professional printing |
Large PDF files are a constant headache — they refuse to attach to emails, take forever to upload to Google Drive, and clog up cloud storage. Our free online PDF compressor solves all of that instantly. Upload your document, pick a compression level, and download a dramatically smaller PDF in seconds.
We offer three compression presets tailored to different needs. The Maximum preset (72 DPI) is best when file size is the top priority — great for sharing via messaging apps or embedding in websites. The Recommended preset (150 DPI) delivers the best balance of size and clarity, perfect for general documents, reports, and archiving. The High Quality preset (300 DPI) maintains near-print quality, ideal for professional printing or high-fidelity document sharing.
Our PDF compressor works on all common PDF types — scanned documents, forms, presentations, and text-heavy contracts. The compression engine targets embedded images within the PDF, resampling them at the appropriate DPI while leaving text layers untouched and fully searchable.
Email services like Gmail and Outlook impose attachment size limits (typically 10–25 MB). Government portals, job applications, and university submissions often cap uploads at 5 MB or less. Compressing your PDF before submission prevents frustrating errors and rejections. Legal professionals compress lengthy contracts. HR teams reduce multi-page resumes. Architects shrink large technical drawings. Academics compress thesis documents for submission portals. No matter your use case, our tool handles it quickly, securely, and for free.