Are my PDFs uploaded?
No. BrowserFiles reads and rebuilds the PDFs you choose inside your browser. File bytes are not sent to a BrowserFiles server.
How does this make a PDF smaller?
Each page is drawn as an image at the resolution you choose and saved as a JPEG, and a new PDF is built from those images. This works well for scans and photos of paper.
What do I lose?
Text is no longer searchable or selectable, and links, form fields and bookmarks are removed, because every page becomes a picture. Your original file is not changed and can still be downloaded from the list.
Why did my PDF not get smaller?
PDFs made of text, like exported documents, are usually already compact. Turning their pages into images can make them larger. BrowserFiles tells you when there is no useful reduction and does not offer the larger file.
Can I aim for a size, like under 2 MB?
Yes. Enter a target and up to three passes step down to smaller settings. If the target cannot be met, you get the smallest attempt with its real size, labelled as missing the target.
Which PDFs are not accepted?
Password-protected, fillable and digitally signed PDFs are refused, as are damaged files. Each PDF can be up to 20 MB and 50 pages, and up to 10 PDFs can be compressed in one batch.
Can I compress PDFs offline?
Yes, after this page and its PDF tools have been cached on a first visit. The page shows Offline ready only once that setup completes.