PDF BATCH
Free Bulk PDF Compression online
Compress multiple PDFs at once.
Bulk PDF Compression is a free browser tool that lets you compress multiple PDFs at once. Add your PDF, adjust the Bulk PDF Compression options if you need to, then download the result immediately. Bulk PDF Compression works on your device only, so no file or text is ever uploaded.
- Free to use
- No signup
- No uploads
- Works offline
Why use Bulk PDF Compression
- compress multiple PDFs at once without installing software
- Your PDF is processed on your device by Bulk PDF Compression, never uploaded
- Bulk PDF Compression needs no account, email address or payment details
- Bulk PDF Compression is batch-friendly: reuse it immediately on the next file
- Bulk PDF Compression is keyboard accessible and screen-reader friendly
- Bulk PDF Compression is free forever, with no watermark on the result
Bulk PDF Compression runs entirely inside your browser. Your PDF is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use Bulk PDF Compression
- Add your PDF Drag your PDF onto the drop zone or pick it from your device.
- Adjust the options Set the options that control how Bulk PDF Compression handles your input.
- Run the tool Bulk PDF Compression works instantly on your device, with no queue and no upload wait.
- Download the result Save the finished file straight to your device, then reuse the tool as often as you like.
Benefits
Private by design
Your PDF stays on your device while Bulk PDF Compression works. Bulk PDF Compression never sends it to a server, so confidential work stays confidential.
Instant results
There is no upload step, so Bulk PDF Compression starts the moment you add your PDF.
No signup, no limits
Use Bulk PDF Compression as many times as you want. Bulk PDF Compression asks for no account, adds no watermark and keeps no paid tier gating the output.
Works offline
Once the page has loaded, Bulk PDF Compression keeps working without a connection, which helps on flights and locked-down networks.
Who it is for
For students
Students use Bulk PDF Compression to hand in coursework without installing software: compress multiple PDFs at once on a shared or locked-down machine.
For freelancers
Bulk PDF Compression helps freelancers send client deliverables quickly, since your PDF never leaves the laptop it was created on.
For legal and finance teams
Bulk PDF Compression helps legal and finance teams handle sensitive documents quickly, since your PDF never leaves the laptop it was created on.
How it works
Bulk PDF Compression loads your PDF into memory, applies the change you requested to the underlying data rather than to a screenshot of it, and writes a fresh copy for download. Your original stays untouched on disk, and every step of Bulk PDF Compression happens inside your browser sandbox.
Frequently asked questions
Is Bulk PDF Compression free to use?
Yes. Bulk PDF Compression is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does Bulk PDF Compression upload your PDF to a server?
No. Bulk PDF Compression processes your PDF inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a file size limit?
The practical ceiling is your device's available memory rather than a server quota. Files up to roughly 100 MB work comfortably on a typical laptop in Bulk PDF Compression.
Do I need to install anything to use Bulk PDF Compression?
No installation is needed. Bulk PDF Compression runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use Bulk PDF Compression on a phone or tablet?
Yes. The Bulk PDF Compression interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your PDF when I close the tab?
It is discarded. Bulk PDF Compression keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
Related tools
- Batch PDF Converter | Convert multiple PDFs to images at once
- Batch PDF Renamer | Rename multiple PDFs with a pattern
- Compress PDF | Reduce file size without losing quality
Last updated: 2026-09-07