Compress PDF

Smart multi-stage optimization: The tool uses a combination of techniques to achieve optimal compression:

• Image optimization: All images are re-encoded with smart JPEG compression that balances quality vs. size.
• DPI scaling: The tool intelligently adjusts resolution while preserving text clarity.
• Content-aware processing: Text is processed separately from images to maintain sharpness.
• Adaptive quality: The slider lets you fine-tune the compression level for your specific needs.

All processing happens locally in your browser, ensuring your documents remain private and secure.

No, text always remains razor-sharp. The tool uses a smart algorithm that:

• Preserves text integrity: Text is rendered with high fidelity regardless of compression level.
• Optimizes images separately: Only image content is compressed, text is kept at optimal quality.
• Maintains layout: Original page dimensions, margins, and structure are preserved.

You can use even the highest compression level (maximum reduction) and text will remain perfectly clear and readable.

Yes, 100% privacy guaranteed. Unlike online PDF compressors that upload your files to external servers:

• Local processing: All compression happens in your browser using JavaScript.
• No uploads: Your PDFs are never transmitted over the internet.
• No storage: Files are processed in memory and never saved to any disk.
• No tracking: We don't collect any data about your documents or usage.

Your sensitive documents — contracts, financial records, personal information — stay on your device, completely secure.

There are absolutely no file size limits. You can compress:

• Small files: 1KB documents, forms, and single-page PDFs.
• Medium files: 10-100MB reports, presentations, and manuals.
• Large files: 1GB+ scanned documents, high-resolution images, and extensive catalogs.
• Any size: No restrictions on file size, page count, or total number of pages.

The tool handles large files efficiently using progressive processing techniques.

No, original page dimensions are preserved. The tool:

• Maintains page size: A4, Letter, Legal, and custom sizes remain unchanged.
• Preserves orientation: Portrait and landscape pages are kept in their original orientation.
• Keeps margins: All margins, spacing, and layout elements stay in place.
• Retains content structure: The visual hierarchy and formatting remain intact.

Your PDF will look identical in dimensions and layout, just with a smaller file size.

Batch compression is fully supported and free. Here's how it works:

• Upload multiple PDFs: Drag & drop or select multiple files at once.
• Compress all at once: Click "Compress PDF" and the tool processes all files sequentially.
• Download individually: Each compressed PDF can be downloaded separately.
• ZIP archive option: If JSZip is available, all files can be downloaded as a single ZIP archive.

No limits on the number of files — compress as many PDFs as you need.

The tool offers 5 compression levels to suit different needs:

• Maximum Reduction (0-20%): Smallest file size, images noticeably compressed, text remains sharp. Best for email attachments.
• Strong Compression (21-45%): Good file reduction, decent image quality for web viewing.
• Balanced (46-70%): Recommended for most uses. Images look good, text razor-sharp, significant space saving.
• Light Compression (71-85%): Minor size reduction, excellent image quality. Best for presentations.
• Minimum Compression (86-100%): Almost original quality, very slight size reduction. Ideal for print materials.

Text is always preserved at the highest quality across all levels.

Absolutely not. This tool never adds any watermarks, logos, or branding to your PDFs. You get clean, professional results every time. The tool is completely free and you own all rights to your documents — no hidden fees, no premium tiers, and no restrictions.

This tool is designed for anyone who needs to reduce PDF file sizes:

• Students: Compress lecture notes and research papers for easy sharing via email.
• Teachers: Reduce size of worksheets and assignment PDFs for faster uploads to learning platforms.
• Professionals: Optimize contract PDFs and reports before sending to clients.
• Administrators: Compress scanned documents and forms for archiving.
• Businesses: Prepare product catalogs and brochures for web distribution.
• Email users: Shrink PDF attachments to fit within email size limits.

Anyone who needs to save storage space, improve upload speeds, or share documents more efficiently will benefit from this tool.

Scanned PDFs are optimized effectively. Since scanned documents are essentially images, they can benefit significantly from compression:

• Image optimization: The tool re-encodes scanned pages with smart JPEG compression.
• DPI adjustment: Resolution is optimized based on the compression level you select.
• Text clarity: Even scanned text remains readable at reasonable compression levels.
• Batch processing: Compress multiple scanned documents at once.

For scanned documents, we recommend using Balanced (65%) or Strong Compression levels for the best size-to-quality ratio.