Bulk Compress PDF: free online tool
Bulk Compress PDF shrinks many PDFs in one run. Add the files, choose a compression level and download one ZIP with all the smaller files.
Also searched as: bulk compress pdf · compress multiple pdf files · batch reduce pdf size · compress pdf folder
How to use Bulk Compress PDF
- Open Batch Processing and add your PDFs.
- Choose Compress and a compression level.
- Process the files and download the ZIP.
What you can do
- Light, recommended or strong compression
- Failed files never stop the batch
- No file-count or size limit
Runs 100% in your browser · No upload · No sign-up · No limits
Privacy and where your file is processed
Runs 100% in your browser. Your files never leave your device: no upload, no account and no usage limit.
Free usage limits
Free to use. In your browser: no account, no file-size limit and no usage limit. Advanced AI mode (our private GPU server): free account with 150 credits a month (1 credit per page for OCR and PDF to Word), files up to 50 MB and 100 pages. There is no paid tier.
Frequently asked questions
How much smaller will my PDFs get?
It depends on the content. Scans and image-heavy PDFs shrink the most; text-only PDFs are often already small.