Compress PDF
Reduce PDF file size online for free. Compress to a target like 100KB, 200KB or 1MB. No upload, no signup: your files never leave your device.
- Free
- No upload
- No sign-up
- No watermark
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How to compress a PDF
- Choose or drop your PDF. It stays on your device.
- Pick a mode: smaller file, or keep text selectable. Optionally set a target size such as 200 KB.
- Click Compress PDF, check the before and after sizes, then download.
Why use PDFKettle
Files stay on your device
Your PDF is processed inside your browser and never uploaded, so nobody else gets a copy.
Free, no sign-up
No account, no email and no watermark on your files. Just open the tool and use it.
Fast, no waiting
There is no upload or download queue. Small files are done almost as soon as you click.
Works on any device
Use it on Windows, Mac, Linux, Android or iPhone in any modern browser. Nothing to install.
About Compress PDF
This PDF compressor runs inside your browser, so nothing is uploaded and there is no server queue to wait in. That matters for contracts, IDs and anything else you would rather not send to a stranger's server.
Smaller file mode redraws each page as an optimized image, which gives the biggest savings but turns text into pixels. Keep text mode only tidies the file's structure, so the saving is modest on PDFs that are already efficient.
Frequently asked questions
Are my files uploaded to a server?
No. The tool runs inside your browser, so your files are read and processed on your own device and never sent anywhere.
Will compressing a PDF reduce its quality?
Keep text mode only optimizes the file structure and leaves everything intact, but savings are modest. Smaller file mode converts each page to an optimized image, which shrinks files a lot but makes text non-selectable.
Can I compress a PDF to a specific size like 100KB?
Yes. Enter a maximum such as 100 or 200 KB. The tool tries stronger settings until the file fits, or tells you the smallest size it could reach.
Why is my PDF file so large?
Usually because of scanned pages or high-resolution photos. Each scanned page is a large image, so a few pages can add up to several megabytes. Those files shrink the most.
How do I reduce PDF size without losing selectable text?
Choose Keep text selectable. It cleans up the file without redrawing pages, so text stays searchable. The saving is smaller than with Smaller file mode.
Does it work on iPhone and Android?
Yes. It runs in any current mobile browser. Very large files depend on your phone's memory, so compress long scans in parts if a phone struggles.