Reduce PDF file sizes for easier email attachments and faster uploads. Maintain document quality while achieving significant compression.
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Large PDF files are a hassle. They get rejected by email servers, take forever to upload, and eat up storage space. Our PDF compressor solves this instantly, shrinking your files by up to 90% while keeping them readable.
Gmail and Outlook block attachments over 20-25MB. Compress your PDF to easily share reports or portfolios via email.
Government portals, job applications, and university submission forms often have strict 2MB to 5MB file upload limits.
Large PDFs take a long time to load and consume mobile data. Compress them so clients can open your brochure instantly on their phones.
Save gigabytes of hard drive or cloud storage space by compressing thousands of archived invoices and receipts.
Avoid quality loss while getting the smallest file.
Text-only PDFs will not compress heavily
Compression primarily works by downsampling images. If your PDF is 100% vector text and no images, it is already extremely small and will not see a 90% reduction.
Using "Screen" preset for printing
The Screen preset downscales images to 72 DPI, which looks great on a phone but pixelated on paper. Use the Print or Ebook preset if the file will be printed.
Pro tip: Merge first, then compress
If you are working with multiple documents, use PDF Merge to combine them first, then compress the final single file for the best overall efficiency.
Upload your PDF file into the upload area
Select compression preset: Screen for maximum compression, Ebook for balance, or Print for quality
Click the Compress button and wait for processing
Download your compressed PDF
Our PDF compressor can reduce file sizes by up to 90% depending on the content. PDFs with many high-resolution images see the most significant reductions. Text-heavy PDFs typically reduce by 30-50%.
We offer multiple compression presets. The "Print" preset maintains high quality (150-300 DPI), "Ebook" provides a balance (150 DPI), and "Screen" offers maximum compression for digital viewing (72 DPI).
You can compress PDFs up to 100MB for free. There is no limit on how many PDFs you can compress daily.
Our tool uses intelligent preset algorithms rather than exact target sizes. Try the "Screen" preset for the absolute smallest file size possible while remaining legible.
No. Compression resamples images and optimizes internal document syntax. It never deletes pages, text, or images from your document.
Compressed PDFs are easier to email (avoiding generic 25MB attachment limits), faster to upload/download, and take up less storage space on your device.
Yes, your PDFs are processed entirely locally in your browser. Files are never uploaded to our servers, ensuring complete privacy.
GenZDoc Editorial Team
Reviewed for accuracy, privacy compliance & usability by the GenZDoc team