Compress PDF
Runs entirely in your browser
Reduce the file size of a PDF directly in your browser. Choose a compression level and see the exact size reduction — your file is processed entirely on your device and is never uploaded to our servers.
Drag & drop a PDF here
or
Up to 50MB.
File
Keeps text and graphics fully intact and only removes redundant file structure. Best when you need selectable, crisp text.
What is Compress PDF?
Compress PDF reduces the file size of a PDF so it's easier to email, upload or store. Low compression only strips redundant internal file structure, keeping your text and graphics exactly as they were. Medium and High compression redraw each page as an optimized image, which can shrink scanned documents and image-heavy PDFs dramatically at the cost of selectable text.
How to use Compress PDF
- Choose a PDF file, or drag and drop it into the tool.
- Pick a compression level based on whether you need to keep selectable text.
- Click Compress PDF, review the size reduction, then download the result.
Features
- Three compression levels to balance quality and file size.
- Shows the exact original size, compressed size and percentage reduction.
- Low compression preserves selectable text and vector graphics.
- 100% client-side — your PDF never leaves your browser.
Frequently Asked Questions
Is my PDF uploaded to a server?
No. Compress PDF processes your file entirely in your browser. Your PDF never leaves your device.
How much smaller will my PDF get?
It depends on the file. Scanned or image-heavy PDFs usually shrink the most. You'll see the exact original size, compressed size and percentage reduction after processing — we never promise a fixed ratio in advance.
Does compression affect text quality?
Low compression keeps your original text and graphics fully intact and just removes redundant file structure. Medium and High compression redraw each page as a compressed image to save more space, which means text is no longer selectable and may look less sharp.
Which compression level should I choose?
Use Low if you need to keep selectable, crisp text. Use Medium or High if the PDF is mostly scanned pages or images and you want the smallest possible file.
Is there a file size limit?
You can compress PDFs up to 50MB. Larger or longer documents may take longer to process depending on your device.