A PDF can be only a few pages and still exceed an upload limit because it contains high-resolution scans or images exported at print quality. Valestiom's current PDF Compressor renders every page as an image and rebuilds those images into a new PDF. This can reduce visually oriented or scanned documents for email and uploads, but the result is a flattened copy rather than a structure-preserving PDF.
Open PDF CompressorSave the original somewhere safe before creating a smaller derivative. The output is rasterized and should be treated as a visual delivery copy, not a replacement for an archival, accessible, editable, or digitally signed original.
Open Valestiom's PDF Compressor and choose the document. The file is read and processed in your browser, with no upload queue or account involved.
Start with the middle setting when the PDF contains both text and images. Stronger compression can help with scanned pages, but it may soften small type or diagrams.
Open the downloaded result, confirm that the page count matches the source, and inspect small text, diagrams, stamps, and image-heavy pages at the size the recipient will use. Confirm the file size and visual quality before sharing it.
The compressor converts each page into a JPEG image and places that image on a page in a new PDF. The page appearance remains, but selectable text, hyperlinks, form controls, bookmarks, document metadata, and accessibility structure are not preserved in the rebuilt file.
Digital signatures are also not preserved as valid digital signatures. A visible signature or stamp may still appear in the page image, but the cryptographic signature and its verification data are lost. Do not use this workflow when the recipient needs searchable text, working links, editable forms, assistive-technology support, or signature validation.
Check more than the number of bytes. Compare the page count with the source, zoom into a small footnote, and inspect pages with stamps, photographs, or fine line drawings. Make sure every page is present, correctly oriented, and visually readable at the intended screen or print size.
If the PDF contains confidential information, local processing is especially useful: the document can be transformed without sending a copy to a remote conversion service. It does not protect a file after you download or email it, so use the same care with the compressed derivative as with the source.
No. Each page is rebuilt as an image, so selectable text, links, forms, bookmarks, accessibility structure, metadata, and digital-signature validation are not preserved. Keep and share the original when those features matter.
Yes, scanned PDFs are a common case for compression because their pages contain raster images. The achievable reduction depends on scan resolution and the quality level you choose.
No. The tool processes the document locally in your browser and does not send it to a Valestiom server. Browser downloads, extensions, and your own storage remain outside that guarantee.
Open the focused Valestiom tool and apply the steps from this guide in your browser.
