Bulk PDF Compressor
Compress a whole folder of PDFs at once, instead of shrinking them one at a time.
Many files, one pass
Shrinking one oversized PDF is quick; doing it to twenty is a chore. This applies compression across a whole batch, so a folder of heavy scans or reports comes out lighter together, ready to email or archive without you repeating the same steps over and over.
Drop the files in, set the level once, and the whole set is optimised.
Where it saves the most
The biggest wins come from image-heavy and scanned PDFs, which are essentially stacks of pictures and shrink dramatically. Text-only files have little to give up and will barely move. As with compressing a single PDF, the text stays sharp because only the embedded images are recompressed, and the whole batch is processed on your device rather than uploaded.
How to compress many PDFs at once
- Drop in all the PDFs you need to shrink.
- Choose one compression level for the whole batch.
- Download the smaller files together as a ZIP.
Shrink a whole folder in one pass
When an entire folder of reports or scans is too heavy to email or upload, compressing them one by one is a slog. Batch compression applies the same settings to every file at once, so a stack of documents is ready to send in a single step.
As with single-file compression, the savings come mostly from re-encoding images, so scan-heavy folders shrink the most.
Bulk PDF Compressor FAQ
Do all files use the same setting?
Yes — you pick one level for the batch. For very different files, run more than one pass.
How many can I compress together?
As many as your device's memory allows; larger batches take a little longer since it all runs locally.
Are my originals kept?
Yes. You download compressed copies and your source files are untouched.
Can the PDFs be different sizes and types?
Yes. Each is optimised on its own, so a mixed folder comes out uniformly lighter.
Will the text stay sharp across the batch?
Yes. Only the images are recompressed; the text is untouched.
Are my files uploaded?
No. The whole batch is processed in your browser.