How to reduce your PDF file size
On your deviceor drop files here
PDF files only
If a PDF is too big to upload or send, the cause is almost always images. Scanned pages and phone photos can add megabytes per page, while plain text adds very little. That gives you three ways to make a PDF smaller, from least to most drastic. 1. Compress the images with the compressor on this page: keep Recommended selected and check the new size. 2. Delete pages you don't need — cover sheets, blank pages, appendices nobody asked for — then compress again. 3. Split the file into parts if a form or email accepts several attachments. If compression barely changes the size, the PDF is probably mostly text or already optimized; deleting or splitting will help more. All three tools run in your browser, so the PDF is never uploaded. Free, no sign-up, no watermark.
How to reduce PDF file size
- Add your PDF to the compressor above, keep Recommended, and click Compress PDF.
- Check the new size. Still too big? Remove unneeded pages with Delete pages, then compress again.
- If it must be smaller still, split it into parts with Split PDF.
- Download your file(s).
Step 1
Add your PDF to the compressor above, keep Recommended, and click Compress PDF.
Step 2
Check the new size. Still too big? Remove unneeded pages with Delete pages, then compress again.
Step 3
If it must be smaller still, split it into parts with Split PDF.
Step 4
Download your file(s).
FAQ
Why is my PDF so large?
Usually images: scans, photos and image-heavy slides. A PDF made from phone photos can be several megabytes per page.
How can I make a PDF smaller without losing quality?
Use the Low level, which compresses lightly, and delete pages you don't need — removing pages doesn't affect the quality of the rest.
Why didn't compressing make it smaller?
Text-only or already-optimized PDFs have little left to compress. Delete pages or split the file instead.
Can I reduce PDF size on my phone?
Yes. All three tools work in mobile browsers (files up to 100 MB on phones).
Is my PDF uploaded?
No. Compress, Delete pages and Split all run in your browser.
