Compress PDF
Reduce PDF file size with lossless or stronger compression directly in your browser.
Choose from your deviceDrag and drop a PDF here
Loading your plan limits...
Compress PDF guide
How to compress a PDF
Reduce a PDF's file size directly in your browser. Choose a compression mode based on whether preserving selectable text and PDF features or achieving a smaller file is more important.
Add your PDF
Select a PDF from your device or drag it into the upload area.
Choose a compression mode
Use Lossless to preserve PDF functionality, or Balanced and Strong when reducing the file size matters more.
Compare and download
Fylento shows the original size, compressed size, and percentage saved before you download the result.
Which PDF compression mode should you use?
Fylento offers three modes because there is no single compression setting that is best for every PDF.
Lossless
RecommendedBest when you want to preserve selectable text, links, forms, images, and normal PDF behavior. File-size savings depend on how optimized the original PDF already is.
Balanced
Rebuilds each page as a compressed image to target a smaller file while keeping reasonable visual quality. Text selection, links, forms, and other interactive features are not preserved.
Strong
Uses more aggressive image compression for maximum reduction. It can produce more visible quality loss and, like Balanced mode, creates image-based PDF pages.
Compress PDFs privately in your browser
The compression process runs on your device. Your selected PDF does not need to be uploaded to a remote conversion server just to reduce its file size.
Local processing
Fylento uses browser-based PDF processing for this tool, which is useful when you are working with documents you prefer to keep on your device.
No added watermark
The compressed PDF is downloaded without a Fylento watermark added to its pages.
Avoid making a file larger
If a selected mode would produce a PDF that is the same size or larger, Fylento keeps the original instead of giving you a worse result.
See the savings before downloading
The result panel reports how many bytes were saved and the percentage reduction, making it easy to judge whether the compression was worthwhile.
When a smaller PDF is useful
Compressing a PDF can make it easier to share, upload, store, or send when a service has file-size limits.
Compress PDF FAQ
Can I compress a PDF for free?
Yes. Fylento's Free plan includes local PDF compression within the file-size and page limits shown by the tool.
Does Fylento upload my PDF to compress it?
No. This tool performs the compression in your browser, so the selected PDF stays on your device during processing.
Why did my PDF not get much smaller?
Some PDFs are already efficiently optimized, so lossless compression may have little room to reduce them further. Balanced or Strong can often reduce image-heavy files more, but those modes trade PDF features and some visual quality for a smaller result.
Will text stay selectable after compression?
In Lossless mode, Fylento is designed to preserve selectable text and normal PDF functionality. Balanced and Strong render the pages as compressed images, so text is no longer selectable in those output files.
Which mode gives the smallest PDF?
Strong is the most aggressive mode. It uses lower-resolution, lower-quality page images than Balanced mode, so it can reduce size further at the cost of more visible quality loss.
Related PDF tools
Continue working with your PDF using other Fylento tools.
Merge PDF
Combine multiple PDF files into one document before compressing or sharing them.
Split PDF
Keep only the pages you need by splitting a larger PDF into smaller files.
Repair PDF
Try to rebuild a PDF that has structural problems or is difficult to open normally.
Protect PDF
Add password protection after you have reduced the PDF to the size you need.