Significant Size Reduction
Reduce PDF file sizes by up to 90% depending on content. Optimizes internal PDF structure while preserving document quality.
Batch PDF Compressor
Compress multiple PDF files at once to reduce file sizes. Process up to 100 PDFs in a single batch without uploading to any server. Perfect for shrinking large document collections.
Upload Files
Select or drag files to process
Drag & drop files hereTap to select files
or browse from device
PDFMax 100MB each100 slots available
Why Use Our Batch PDF Compressor?
Private & Secure
All compression happens locally in your browser. Your PDF documents never leave your device, ensuring complete privacy for sensitive files.
Fast Batch Processing
Compress dozens or hundreds of PDF files in seconds with parallel processing optimized for bulk operations.
Download as ZIP
Get all compressed PDFs in a single ZIP archive for easy downloading and organization.
Unlimited Free Compression
Compress as many PDF files as you need with no daily restrictions, watermarks, or hidden fees.
Preserves Content
All pages, text, images, and formatting remain intact. Only file size is reduced, not content.
How to Compress Multiple PDFs at Once
Follow these simple steps to batch compress your PDF files and reduce their sizes.
1
Upload PDF Files
Select or drag and drop multiple PDF files. You can process up to 100 PDFs at once, each up to 100MB.
2
Start Compression
Click compress to optimize all PDF files simultaneously. Watch progress as each file is processed.
3
Download Compressed PDFs
Download all compressed PDFs as a ZIP file or individually. See exactly how much space you saved.
Common Use Cases for Batch PDF Compression
Batch PDF compression is essential for managing large document collections and reducing storage needs.
Email Attachments
Compress multiple PDFs to fit within email size limits. Send contracts, reports, and documents without exceeding attachment restrictions.
Cloud Storage Optimization
Reduce storage costs by compressing PDF archives before uploading to Google Drive, Dropbox, or OneDrive.
Document Archiving
Compress years of PDF documents for long-term storage. Save disk space while keeping all files accessible.
Business Documents
Compress invoices, contracts, reports, and presentations in bulk. Streamline document management workflows.
Academic Papers
Compress research papers, thesis documents, and study materials. Share academic work more easily.
Website Downloads
Optimize PDF downloads for websites. Smaller files mean faster downloads and better user experience.
Frequently Asked Questions
Compression results vary based on PDF content. PDFs with many images can be reduced by 50-90%, while text-only PDFs may compress by 10-30%. The tool shows exact reduction for each file.
Our compression optimizes internal PDF structure without significantly affecting visual quality. Text remains crisp, and images retain good quality while file sizes decrease.
Yes! All compression happens locally in your browser. Your PDFs never leave your device or get uploaded to any server, making it safe for confidential documents.
No, encrypted or password-protected PDFs cannot be compressed. You must remove protection first, compress the files, then re-encrypt if needed.
You can batch compress up to 100 PDF files at once completely free. Each file can be up to 100MB in size.
No! Compression only reduces file size by optimizing internal PDF structure. All pages, text, images, and formatting remain completely intact.
PDFs with embedded images, scanned documents, and graphics compress the most. Text-heavy PDFs with minimal images may see smaller reductions.
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