Compress PDFReduce PDF file size without losing quality
Reduce the size of any PDF file online for free. Compress large PDFs for email, shrink scanned documents, and make files smaller without losing visible quality. All processing runs in your browser - your file is never uploaded.
Reduce PDF File Size
Upload your PDF and choose a compression level. The tool optimizes embedded images, removes duplicate resources, and strips unnecessary metadata. Typical image-heavy PDFs shrink 50-80%. Text-only documents see smaller reductions since text is already compact. The tool shows you the exact size before and after.
Compress PDF Without Losing Quality
Light compression reduces file size with zero visible difference - it removes unused objects and metadata while keeping images untouched. Medium and high compression optimize images progressively. Text is never re-encoded at any level and always stays perfectly sharp and searchable.
Make PDF Smaller for Email
Most email providers limit attachments to 20-25 MB. If your PDF is too large to send, compress it here. Scanned documents, presentations with images, and photo-heavy reports are the biggest beneficiaries. After compressing, use Merge PDF if you need to combine multiple files into one attachment.
Shrink PDF Files Without Uploading
The entire compression runs in your browser. Your file never leaves your device - no cloud servers, no temporary copies, no third-party access. Compress confidential contracts, financial reports, and medical documents with complete privacy.
How to Reduce PDF Size
Upload Your PDF
Drag and drop your PDF or click to browse. No file size limits.
Choose Compression Level
Select low, medium, or high compression depending on your quality and size needs.
Download the Smaller PDF
Click Compress and download. The tool shows exactly how much the file size was reduced.
Frequently Asked Questions
How much smaller will my PDF get?
Image-heavy PDFs typically shrink 50-80%. Text-only documents see smaller reductions (5-15%) since text is already compact.
Can I compress a PDF without losing quality?
Yes. Low compression removes unused objects and metadata without touching images. The file gets smaller with no visible difference.
Can I compress a PDF to a specific size like 100KB or 1MB?
There is no exact target size option. Choose high compression for the smallest result. If still too large, try compressing again or remove unnecessary pages first.
Why is my PDF file so large?
Usually high-resolution embedded images. Scanned documents, photos, and presentations with images are the most common causes of large PDF file sizes.
Will compression make text blurry?
No. Text is never re-encoded or touched. Only images are optimized. Text stays perfectly sharp and searchable at all compression levels.
Should I compress before or after merging PDFs?
After. Use Merge PDF to combine your files first, then compress the merged result once. This is more efficient.
Can I compress a large PDF that is over 100MB?
Yes. There are no file size limits. The only constraint is your device's available memory.
Does this work for scanned PDFs?
Yes. Scanned PDFs are mostly images, so they compress very well - often achieving 60-80% size reduction.