Compress PDF
Reduce PDF file size while keeping documents readable.
Shrink a PDF so it fits under email and upload limits. The tool rebuilds the document with object streams, strips metadata and removes redundant structures.
Compression rebuilds the document with object streams and removes metadata. Text and vector graphics stay perfectly sharp. Files that are mostly scanned photographs are already image-compressed, so the saving will be smaller.
How the compress pdf works
- 1Upload the PDF you want to shrink.
- 2Pick a compression level based on where the file is going.
- 3Compression re-encodes images in your browser; text stays sharp.
- 4Compare the before and after size, then download the result.
Frequently asked questions about the compress pdf
Are my files uploaded to a server?+
No. This tool runs entirely inside your browser using modern web APIs. Your file is read into memory on your own device, processed locally and never transmitted to Data Wave Cloud or any third party.
How much smaller will my PDF get?+
It depends entirely on the source. Documents produced by office software often shrink by 10-40%. Files that are mostly scanned photographs are already image-compressed, so the saving is smaller. The tool always reports the exact result before you download.
Will compression reduce the quality?+
Text and vector content are untouched and stay perfectly sharp. Compression works on document structure and metadata, so your pages remain fully readable and printable.
Is this tool free to use?+
Yes, completely. There is no account, no trial, no watermark and no daily limit. Data Wave Cloud is funded by unobtrusive advertising so the tools stay free permanently.