Compress PDF
Reduce file size for email and upload. Free, private and runs in your browser.
About Compress PDF
Compress PDF makes a PDF smaller so it is easier to email or upload. It redraws each page as an optimised image at the level you choose. This can reduce the size a lot, especially for scanned documents and image-heavy files.
How to use Compress PDF
- Click “Select file” or drop your file onto the page.
- Adjust the options that appear on the right, if there are any.
- Click the action button. The result is created in your browser and downloads right away.
When is Compress PDF useful?
- Fit a PDF under an email attachment limit
- Meet the file size limit of an online application form
- Save storage space on your phone or computer
Frequently asked questions
Why can I not select text after compressing?
To reduce the size, each page is turned into an image, so the text is no longer selectable. Keep your original if you need searchable text.
Which level should I choose?
Recommended is a good balance. Choose Extreme when file size matters most and Less when you want the best quality.
Why did my file not get smaller?
A PDF that is already optimised, or that contains mostly text, can stay the same size or grow. Try the Extreme level for a smaller result.
Is Compress PDF free to use?
Yes. Compress PDF is free, with no sign-up and no usage limits.
Are my files uploaded to your servers?
No. The work is done in your browser on your own device, so nothing you use here is sent to our servers.
Privacy and safety
Compress PDF runs entirely in your browser. The files you choose never leave your device and nothing is kept after you close the page.