Upload PDF File
Key Features
- Compress PDF files to reduce file size
- 4 compression levels: Low, Medium, High, Maximum
- Reduce file size by up to 90% depending on content
- Preserve PDF quality with smart compression
- Batch compression support (coming soon)
- See compression ratio and size reduction
- Download compressed PDF instantly
- Works with scanned documents and text PDFs
- No file size limits for most PDFs
- Completely free with no registration required
Common Use Cases
- Reduce PDF file size for email attachments
- Compress large scanned documents
- Optimize PDFs for web upload
- Reduce storage space for archived PDFs
- Meet file size limits for forms and applications
- Speed up PDF loading and download times
- Compress presentation PDFs for sharing
- Optimize PDF portfolios and reports
- Reduce bandwidth usage for PDF downloads
- Prepare PDFs for mobile viewing
How to Compress PDF
- Click "Choose PDF File" and select your PDF document
- Select compression level: Low (smallest file), Medium (recommended), High (best quality), or Maximum (preserve quality)
- Click "Compress PDF" button to start compression
- Wait for the compression to complete (usually a few seconds)
- Review the compression results: original size, compressed size, and percentage saved
- Click "Download Compressed PDF" to save your optimized file
Frequently Asked Questions
Compression ratio depends on your PDF content. Scanned images can be reduced by 80-90%, while text-based PDFs may see 20-50% reduction. The tool shows exact savings after compression.
Yes, but you control the trade-off. Low quality gives maximum compression but reduced image quality. Medium (recommended) balances size and quality. High and Maximum preserve quality with less compression.
Use Medium for most cases (good balance). Use Low for email attachments when size is critical. Use High/Maximum for professional documents where quality matters most.
No, encrypted or password-protected PDFs cannot be compressed. You need to remove the password first, then compress, then re-encrypt if needed.
The tool can handle PDFs up to 50MB. For very large files, compression may take longer but will work for most documents.
The tool uses Ghostscript to re-encode PDF content, optimizing images, removing redundant data, and applying compression algorithms while maintaining PDF structure and readability.
No! Files are processed in memory and immediately deleted after compression. We do not store any uploaded or compressed PDFs.
Yes! This tool is completely free to use for personal and commercial projects with no restrictions.
This rarely happens but can occur if your PDF is already highly optimized. In such cases, the original file is already at optimal size.
Yes! Text content, links, and searchability are preserved. Only images are compressed, text remains as crisp vector data.
