Compress PDF
Make a PDF smaller by rebuilding it cleanly in your browser — unused data is dropped and the file is re-saved in a compact form. Your file is never uploaded anywhere.
How it works
- Choose one PDF file.
- Click "Compress PDF".
- Compare the sizes and download the smaller file.
Honest note: this tool rebuilds the PDF and drops unused data. Files that are already well-optimized, or made mostly of photos, may shrink only a little — in that case the result will say so, instead of pretending. Password-protected (encrypted) PDFs cannot be compressed here yet — please unlock them first.
Why use Compress PDF on Abloom Pdfly
- Private by design: your file is processed in your browser and is not uploaded.
- Free: no sign-up, no watermark on your output, and no daily limit.
- Works everywhere: phones, tablets and computers in any modern browser, with nothing to install.
- Your original stays untouched: you always download a new file.
Compress PDF: common questions
Is Compress PDF free?
Yes — every tool on Abloom Pdfly, including Compress PDF, is free to use. No account, no watermark on your output, and no daily limit.
Are my files uploaded to a server?
No. The work happens on your own device, inside your browser. Nothing you convert, edit or read is sent to a server.
Will it change my original file?
Never. Compress PDF creates a new file for you to download, and your original stays exactly as it was.
Does it work on my phone?
Yes. Any modern browser works — Android, iOS, Windows, macOS or Linux — and there is no app to install.