Batch PDF Compressor
Compress up to 10 PDF files locally, compare before-and-after sizes, and download individual files or one ZIP without uploading documents.
Your input never leaves your device.
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Everything runs 100% locally in your browser. No files are uploaded to any server.
How to Use Batch PDF Compressor
Choose PDFs
Select up to 10 PDF files or drag them into the browser-only drop zone.
Set compression
Choose a balanced, extreme, high-quality, or lossless cleanup profile.
Download results
Review each file’s size change, download PDFs individually, or create one local ZIP.
Key Features & Benefits
Batch workflow
Process several PDFs without repeating the upload and download steps.
Private processing
PDFs stay on your device while the browser performs the compression.
Frequently Asked Questions
How many PDFs can I compress?
The browser-only tool accepts up to 10 PDF files, with a 50 MB per-file limit and a 150 MB total batch limit.
Can I download all compressed PDFs together?
Yes. Create a ZIP locally after processing, or download any successful PDF individually.
Are my PDFs uploaded?
No. Reading, compression, and ZIP creation happen in your browser.
Will every PDF become smaller?
Not always. PDFs that are already optimized may have little or no size reduction; the before-and-after result shows the actual change.
Key terms
- Batch PDF compression
- Processing multiple PDF documents with the same compression settings in one local workflow.