Reduce PDF file size
Compress PDF online and reduce file size on any device.
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About PDF compressor
Reduce PDF size to 500Kb, 200Kb or even 100Kb on this page. You upload one file, choose a compression level, and the tool returns a smaller copy that is easier to store, upload and send. It is free to use, needs no registration and runs in your web browser, with nothing to install.
It helps when a PDF document is too large to send by email or upload to a form, or when you want to save space before archiving. Documents with many images shrink the most, because the number and quality of images affect the compressed size the most. Compress files online whenever you need a lighter copy of a document.
Upload your file by clicking the drop area or dragging it onto it, then choose a compression level and click Compress. Compression runs on GroupDocs servers, where metadata and unused templates are removed and images are optimized. The page then shows the new size, and the Download now button saves the file.
PDF compressor features
- Choose from three compression levels to balance file size and quality the way you need.
- Use the PDF compressor in your browser on Windows, macOS, Android or iOS, with nothing to install.
- Shrink a PDF file for free, with no registration, and get a smaller file that is easier to send.
- Keep your file to yourself: the uploaded file is visible only to the person who uploaded it.
- See the new size of your compressed file on the page and save it with the Download now button.
How to compress PDF files
Questions & Answers
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Do I need an account to reduce PDF file size?No. GroupDocs Compress is free to use and needs no registration.
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Can I reduce PDF size on my phone?Yes. The tool works on any platform, including Windows, macOS, Android and iOS, on computers, phones and tablets.
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What happens to my PDF file after compression?Your uploaded file is visible only to the person who uploaded it, and the download link works for 24 hours. After that, the files are removed from the servers.
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Which compression level should I choose?Medium is the default and gives good compression and good quality. Choose Extreme for the smallest file with lower quality, or Low for high quality with less compression.
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How much smaller will my PDF file be?It depends on the file. The number and quality of images in a document affect the compressed size the most, and the page shows the new size after compression.
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Can I compress other file types too?Yes. The tool supports PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, JPG, JPEG, PNG, BMP, GIF, TIF, TIFF and WEBP.
Portable Document
Portable Document Format (PDF) captures a complete document’s layout, fonts, images, and interactive elements in a fixed structure viewable consistently across any device or platform. Developed by Adobe, PDF is the standard for sharing, printing, and archiving documents—from contracts and reports to eBooks and forms—preserving original formatting and enabling security features like encryption and digital signatures.
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