How to Compress a PDF and Reduce File Size
Got a PDF that's too big to email or upload? Serbabisa's Compress PDF tool shrinks it in seconds by re-rendering each page as an optimized image, entirely on your device, no file ever leaves your browser.
OPEN THE TOOLCompress PDFStep by step
- 1Open the Compress PDF tool
Choose Compress PDF from the directory to open the dropzone.
- 2Drop your PDF
Drag the file in or click to browse. Serbabisa reads the page count and estimates the output size for you.
- 3Pick a compression level
Light keeps the sharpest quality, Balanced is recommended for most files, and Strong gives the smallest file for pages that are mostly scans or images.
- 4Compress and download
Press Compress PDF. If it shrank meaningfully, download the compressed file; if it was already optimized, keep the original instead.
Frequently asked
Will my text still be selectable after compressing?
No, pages are flattened into images to shrink them, so text is no longer selectable or searchable. It's best for scans and image-heavy PDFs.
What if compression barely reduces the size?
Serbabisa detects when a PDF is already well optimized and lets you keep the original instead of a lower-quality copy.
Is my PDF uploaded to compress it?
No. Compression happens locally in your browser tab, so nothing is sent to a server.
Ready to try it?
Do it now, and your file never leaves the tab.