ONLINE PDF TOOL
Compress PDF Online
Reduce PDF file size with a selectable compression level for easier sharing.
How to compress a PDF
- Select or drop one PDF file.
- Choose the preferred compression quality.
- Compress, download, and compare the result.
When should you compress a PDF?
Compression is useful when a PDF is too large for email, web upload, or limited storage.
Balance size and readability
Stronger compression can affect image quality. Compare the downloaded file with the original at normal viewing size.
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Frequently asked questions
Which compression level should I choose?
Start with medium quality, then choose lower or higher quality according to the result you need.
Will text remain readable?
Text should remain readable, but image-heavy or scanned documents should always be checked after compression.
Why is the size reduction sometimes small?
A PDF that is already optimized or mostly contains efficient text and vector data may not become much smaller.