How to use the NextUtils PDF compressor
- Select one unsigned, unencrypted PDF with up to 100 pages and 25 MB. The file is read in your browser for processing.
- Choose whether to clear common document properties such as author and title. Leave this off if you want to preserve those properties.
- Select Compress PDF. The tool rewrites the PDF structure using object streams without scaling or rasterising the page contents.
- Compare the original and download sizes, then inspect the downloaded file. If rewriting gives no saving and properties are unchanged, the original PDF is retained.
Why your PDF might not get smaller
A PDF may already use compact objects and compressed images. Structural optimisation cannot guarantee a particular reduction or make every document fit an upload limit. This tool does not currently offer lossy image recompression or quality presets.
If you request property clearing, the rewritten file can be larger. The result reports that no size reduction was achieved; it does not describe a larger file as successful compression.
Will this change the page layout or text?
The optimiser does not resize pages, scale page contents, resample images or flatten text to an image. PDF rewriting can affect application-specific document features, so keep your original and check page appearance, selectable text, forms and links in a PDF viewer before sharing the result.
Signature fields are not supported. Rewriting a signed PDF can invalidate its signature; handle signed documents in the original signing application. See the PDF-LIB save documentation for the underlying object-stream save options.
Does clearing properties remove private information?
No. This option clears common document properties only. It does not remove all hidden information, comments, attachments, XMP metadata or sensitive text. It is not redaction or full sanitisation. Adobe documents redaction and hidden-information removal as separate tasks.
What if the PDF still exceeds a size limit?
- Remove pages you do not need using the PDF Page Remover, then check the result.
- Use the PDF Splitter if the recipient permits several smaller files.
- If you control the source document, export it again with suitable image settings in the authoring application. Check readability against the recipient's requirements.
- For scanned documents, use a tool that explicitly supports image recompression and compare the appearance before accepting a loss of image detail.
Processing and limits
The selected file is processed in this browser. The site may need a connection to load the processing library. No account is required. Large or complex files can exceed available browser memory even within the 25 MB limit. Close other heavy tabs or use a smaller document if processing fails.
Keep the original PDF until you have checked the downloaded version. A smaller byte count alone does not establish that a document is suitable for your recipient or archive.