How much can my PDF be compressed?

Compression results vary depending on the PDF content. Documents with large embedded images see the most reduction.

Will compression reduce the visual quality?

The optimization focuses on removing unused objects and streamlining the file structure. Visual quality is preserved.

Can I compress multiple PDFs at once?

Currently, you can compress one PDF at a time. Process each file individually for best results.

What if the compressed file is the same size?

If the PDF is already optimized, compression may not reduce the size significantly. The tool will show you the before and after sizes.

Is the compression lossless?

Yes. The compression removes redundant data without affecting the visible content of the document.

PDF圧縮

Reduce the file size of your PDF documents by removing unused objects and optimizing the document structure. Perfect for making PDFs easier to share via email or upload to websites.

ファイルはローカルで処理され、サーバーにアップロードされることはありません。

使用例

Email Attachments

Reduce PDF size to meet email attachment limits and send documents more easily.

Web Upload

Optimize PDFs for faster upload and download on websites and online forms.

Storage Optimization

Reduce the storage space needed for large PDF archives.

Faster Sharing

Smaller files transfer faster through messaging apps and file sharing services.

PDF圧縮

使用例

Email Attachments

Web Upload

Storage Optimization

Faster Sharing

よくある質問

PDF圧縮

使用例

Email Attachments

Web Upload

Storage Optimization

Faster Sharing

よくある質問