Use the PDF Compressor in three steps
Choose a PDF
Select the document you want to make easier to share.
Pick a quality level
Use Lossless for original quality or choose a smaller-file option.
Download the result
Compare file sizes and save the compressed PDF.
Which compression level should you use?
Lossless is best for contracts, forms, and text-heavy files because it keeps PDF objects intact. Balanced is designed for everyday sharing. Strong is useful when file-size limits matter more than perfect reproduction.
What the tool changes
Lossless mode reorganizes the PDF without flattening its pages. Balanced and Strong modes render each page into a new PDF, which can reduce image-heavy documents but may remove selectable text and interactive form fields.
PDF Compressor FAQ
Does the PDF leave my device?＋
No. Processing happens in your browser and the selected file is not uploaded by this tool.
Why is a lossless PDF sometimes not smaller?＋
A PDF that was already optimized may contain little removable overhead. In that case, preserving quality is more useful than forcing a lower-quality result.
Which setting keeps text selectable?＋
Lossless mode keeps the PDF structure intact, so text normally remains selectable. Balanced and Strong flatten pages into images and are intended for smaller sharing copies.
Can I compress a password-protected PDF?＋
Not while it is locked. Remove the password with permission from the document owner, then select the unlocked copy.
Will compression change the number or size of pages?＋
The page count and page dimensions stay the same. Only the way page content is stored changes.
What is a good PDF size for email?＋
Many email systems accept attachments around 20–25 MB, but smaller files are faster to send and open. Check the exact limit used by your email provider.