Free Online PDF Compressor
Shrink a large PDF down to a more manageable size for email attachments, form uploads, or storage. Use the quality slider to balance file size against visual clarity.
How to compress a PDF
- Select or drag in the PDF you want to compress.
- Pick a quality level — lower means a smaller file.
- Click "Compress PDF" and download the smaller version.
Frequently Asked Questions
Will the text still be selectable afterwards?
No. This tool works by re-rendering each page as a compressed image, which is what makes the file smaller. The result looks the same but the text is no longer selectable or searchable, so keep your original if you need that.
How much smaller will my file get?
It depends heavily on the original. Scanned and image-heavy PDFs usually shrink a lot; PDFs that are mostly plain text may not shrink much, and can occasionally get larger.
Is my PDF uploaded anywhere?
No. Compression runs entirely in your browser — your file never leaves your device.