Reduce PDF file size
Tell us the size you need — under 1, 5, 10 or 25 MB — and the tool finds the settings that get there.
Compression re-renders image-heavy pages as JPEG images. With “Keep text selectable” on, pages made of text and vector graphics are only re-saved and stay searchable; pages that are mostly pictures are flattened.
Drop your PDF files here or click to browse
Stays on your device — nothing is uploaded
Select several files to process them together
How do I reduce PDF file size for free?
Open PDFkitt's Reduce PDF Size tool (pdfkitt.com/reduce-pdf-size/): choose the PDF, pick the target size, reduce, then download. It is free, needs no account and adds no watermark, and it runs entirely in your browser — the file is never uploaded to a server.
- Price
- Free — no trial, no paid tier, no watermark
- Account
- Not needed
- File upload
- None — processed on your device, in the browser
- Input
- PDF files (several at once)
- Limits
- No daily quota and no file-count limit
- Works on
- Windows, macOS, Linux, iPhone, iPad and Android, in any modern browser
Updated · by the PDFkitt team
Job portals want under 2 MB, Gmail stops at 25 MB, government forms often say 1 MB. Rather than guessing at compression levels, pick the size you need. The tool compresses at a good quality first and, if the file is still too large, steps the quality down until it fits (or until it reaches the lowest sensible quality).
The result and the achieved size are shown before you download. Everything happens in your browser.
How to reduce PDF file size
- Choose the PDF Drop it on the upload card.
- Pick the target size e.g. under 2 MB.
- Reduce The tool tries progressively stronger settings on your device.
- Download The size reached is shown next to the file.
Why use PDFkitt to reduce PDF Size?
The file is processed inside your browser tab. Disconnect from the internet after the page loads and it still works.
No signup, no email, no daily quota, no page limit, no watermark. Use it as often as you like.
Phone, tablet or desktop, in Chrome, Safari, Edge and Firefox. Nothing to install.
Frequently asked questions
What if it cannot reach the target?
You will see the smallest size achieved. Splitting the document or removing pages is the next step.
Does this lower quality?
Only as much as needed: it starts at high quality and only steps down if the target is not met.
Is my PDF uploaded to compress it?
No. Pages are re-encoded inside your browser; the file never leaves your device.