Compress PDF online
Reduce the size of a PDF when it is too large to email, upload or store conveniently. PDFaspect rewrites and optimizes the document to create a smaller PDF while aiming to keep text and pages readable.
Open Compress PDFHow it works
- Choose the file or files you want to process.
- Start the conversion in your browser.
- Download the finished result.
When this tool is useful
PDF compression is particularly useful for documents containing large images, scans or unnecessary internal data. A smaller file can upload faster, use less cloud storage and fit within attachment limits imposed by email providers or online forms.
- Reduce a PDF before sending it by email
- Fit a document under an upload limit
- Save space when archiving many PDFs
What to know before you start
The amount of reduction depends on the original file. A PDF that is already highly optimized may shrink only slightly, while image-heavy documents can often be reduced much more. Always check the downloaded result when image quality is important.
Privacy and limits
Uploaded originals are deleted after processing. Downloadable results are deleted after download or automatically within 30 minutes. Free use includes 2 PDF tasks per day with files up to 10 MB; PRO provides higher limits.