What it does
Batch PDF Compress reduces the size of many PDFs at once using one shared quality setting and bundles them for download.
- Bulk compression
How do I compress many PDFs at once?
Compress multiple PDFs at once by dropping them all in; the tool reduces each file's size in a single batch and lets you download them together as a ZIP. Set the quality once and it applies to every file. Everything runs in your browser.
- Compress many PDFs in one go
- Single quality setting for the batch
- Download all as a ZIP
- 100% client-side
What is
Batch PDF Compress
A tool that compresses several PDF files together in one batch, applying the same size-reduction settings to each and packaging the results.
PDF Tools
Related terms
compress PDFbulk
Frequently Asked Questions
Many in one batch.
You can queue multiple PDFs and compress them all with one click, then download them together.
Yes.
All compressed files are bundled into a single ZIP for a tidy download.
No.
Every file is compressed locally in your browser.
Detailed Explanation
How it works
Each file is processed sequentially in the browser — images are downsampled and streams re-encoded — then zipped with JSZip.
- Per-file compression + JSZip
Use cases
Shrink a folder of reports, scans or invoices for email or upload limits in one pass.
- Folders of documents
Limitations
Very large batches take longer as everything runs on your device, and already-optimised PDFs may shrink little.
- Local processing time
Privacy
All files stay in the browser and are never uploaded.
- 100% local