VoraPDF
Privacy

Compress PDF

Shrink PDFs by re-encoding page images, with an honest before-and-after size report.

Browser first, server fallback Free

The conversion runs in your browser. Very large files, or a failure, fall back to the server queue.

What this tool does

Compress PDF re-encodes the page images and drops unused objects, then shows you the before and after size. If the result is not smaller, you are told that plainly instead of being handed a file that grew.

Small documents are compressed in your browser. Documents above 200 pages are offered a server path, because a browser tab cannot hold the rasterised pages; that page states the upload before it happens and the copy is deleted with the job.

How to convert it

  1. Add the PDF.
  2. Choose light, balanced or strong compression.
  3. Compress, read the size report, and download if it helped.

When to use it

  • Getting under an email attachment limit.
  • Making a scanned document load faster on a phone.
  • Reducing storage for an archive of reports.

What it cannot do

  • Text-only PDFs may not shrink at all; there is nothing to re-encode.
  • Strong compression visibly softens photographs.

Questions about this conversion

Is this PDF tool really free?

Yes. There is no account, no watermark and no daily limit on the number of files. The tools run on your own device, so there is no per-file cost to pass on to you.

Are my files uploaded to a server?

Not for this tool: the conversion happens in your browser and the file is never sent anywhere. Where a job genuinely needs a server, the page says so before you start and deletes the copy with the job.

Does it work on a phone?

Yes. Pages are keyboard reachable and the drop area accepts the phone file picker. Large documents are limited by the memory of the device rather than by the site.

Can I use the output commercially?

Yes. We claim no rights over your documents or the files produced from them, and we add nothing to the output.

Why did my file get bigger?

Some PDFs are already optimally encoded. Re-encoding can add overhead, so the tool reports the honest result and lets you keep the original.

Is the text still selectable?

Yes. Only the embedded images are re-encoded; the text layer is untouched.