Compress PDF
Reduce PDF file size while keeping quality. 100% free, no uploads, all processing in your browser.
About About the PDF Compression Tool
About the PDF Compression Tool
Our free online PDF compression tool reduces the file size of your PDF documents while preserving quality. Large PDF files can be difficult to email, slow to upload, and consume valuable storage space. Compressing a PDF reduces its size by optimizing the document structure, removing redundant data, and applying intelligent compression techniques. The result is a smaller file that looks virtually identical to the original.
How to Compress a PDF
- Upload — Drag and drop your PDF or click to browse and select a file.
- Choose Level — Select your preferred compression level using the slider. Medium is recommended for most documents.
- Compress — Click "Compress PDF" to start the process. The tool optimizes the document in your browser.
- Preview & Download — Browse the compressed PDF pages, check the size savings, and download the result.
Who Needs a PDF Compressor
- Email Attachments — Reduce PDF size to stay within email attachment limits (typically 10-25 MB).
- Website Uploads — Compress PDFs before uploading to websites or portals with file size restrictions.
- Cloud Storage — Save storage space on Google Drive, Dropbox, or OneDrive by compressing documents.
- Faster Sharing — Smaller files upload and download faster, making document sharing more efficient.
Frequently Asked Questions
The tool is designed to minimize visual quality loss. At Medium compression, the difference is barely noticeable. At Minimum size, you may see slight quality reduction, but the document remains readable.
Typical compression ratios range from 20-60%. Text-heavy PDFs compress less efficiently (20-40%), while PDFs with images can compress much more (40-80%).
Yes, 100% safe. All processing happens locally in your browser using client-side JavaScript. Your PDF never leaves your device.
Files up to 50 MB are supported. Since processing happens in your browser, very large files may take more time and memory to compress.
Compress Your PDF
100% privateUpload a PDF, choose your compression level, and download a smaller file.
Drop your PDF here
.pdf files up to 50 MB
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