PDF and document tools

PDF Compressor

PDF Compressor

Ready

Source PDF document

Local processing

Your document stays on this device. Processing runs in browser memory, and very large files depend on the RAM available in your browser.

Compressed document summary

No PDF file loaded yet. Drop a file or click "Load example" to start.

Local processing

Press Ctrl or Command and Enter to run the tool.

About this tool

About this tool

PDF Compressor optimizes document structure and removes unnecessary metadata using client-side JavaScript libraries. Your PDF files are re-saved locally on your device without leaving your browser.

Reduce the file size of PDF reports, invoices, and presentations without uploading sensitive documents to an external server. Adjust compression modes and strip redundant metadata while processing files securely in your browser memory.

Built for daily work

  • Shrink large PDF reports so they fit within email attachment size limitations.
  • Optimize PDF product brochures and manuals for faster website downloads.
  • Remove unnecessary document metadata before sharing contracts with third parties.
  • Clean up scanned PDF documents before archiving them on internal storage.

How to use this tool

How to use this tool

1

Select your PDF file

Upload any PDF document from your computer or load the built-in example file to test compression controls.

2

Choose a compression mode

Select Standard optimization for general documents, Maximum optimization for bulky files, or Fast mode for rapid structural cleanup.

3

Run the compression tool

Click the Compress PDF button to process the document locally in your browser memory.

4

Download the smaller PDF

Review the file size savings summary and save the compressed PDF directly to your device.

Key features

Key features

100 percent browser-local processing

Your PDF documents are never uploaded to any remote server or stored in cloud databases.

Metadata removal option

Strip hidden author names, edit timestamps, and creation tags to save extra bytes and enhance privacy.

Instant file size reduction summary

See exact before and after file sizes along with the percentage savings immediately after processing.

No file upload limits or queues

Process files as large as your local device RAM permits without waiting in server queues.

Practical use cases

Practical use cases

  • Shrink large PDF reports so they fit within email attachment size limitations.
  • Optimize PDF product brochures and manuals for faster website downloads.
  • Remove unnecessary document metadata before sharing contracts with third parties.
  • Clean up scanned PDF documents before archiving them on internal storage.

Private by default

For local tools, input is processed in your browser and is not sent to application analytics.

Data processing notice

Technical details

Technical details

Input formatsPDF
Output formatsPDF
ProcessingLocal browser memory optimization
Task controlsCompression mode selector, metadata removal checkbox
Maximum local file25 MB per PDF file
Workspace featuresSize savings calculation, memory warning, local download

Limitations and important notes

Limitations and important notes

  • PDF files containing pre-compressed raster images may see modest size reductions compared to uncompressed files.
  • Processing documents larger than 50 MB requires sufficient free browser RAM.
  • Always verify that document formatting and hyperlinks remain intact after optimization.

Frequently asked questions

Frequently asked questions

Related guides and solutions

Related guides and solutions

Browse all guides

How to compress a PDF for email without losing important quality

A practical guide to compressing PDFs for email: what makes PDFs heavy, sensible target sizes, compression modes in the [PDF compressor](tool:pdf-compressor), and checks to run before sending.

Learn more

How to send a large PDF when Gmail blocks the 25 MB attachment limit

A practical guide to getting a large PDF into a Gmail message: understanding the 25 MB rule, choosing between compression, splitting, and cloud links, and compressing locally with the [PDF compressor](tool:pdf-compressor).

Learn more

Reduce PDF file sizes locally without uploading confidential reports

Bulky PDF documents exceed email attachment limits and slow down webpage downloads. Compress PDF files directly in your web browser without exposing data to external servers with the [PDF compressor](tool:pdf-compressor).

Learn more

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