PDF Compressor

🗜️ Compress Your PDF

📄

Drop your PDF here or click to browse

Supports any PDF file · All processing is local

📖 How to Compress a PDF

Upload Your PDF

Click the upload area or drag your PDF file into it.

Select Compression Level

Choose between Low (best quality), Medium (balanced), or High (smallest size).

Compress & Download

Click Compress, then download the optimized PDF.

❓ FAQ

Why can't I compress more than 70%?+

Browser-based compression works by optimizing the PDF structure and metadata. For PDFs with large embedded images, the reduction is more significant. For text-heavy PDFs that are already optimized, the reduction may be smaller.

Will text remain readable after compression?+

Yes. All text content is preserved at full quality regardless of compression level. Only embedded images may lose some quality at high compression.

Free PDF Compressor: Reduce PDF File Size Online

Compress PDF documents online without losing text clarity. Reduce file size for email sharing and fast upload.

Why Compress PDF Files?

High-resolution graphics, embedded fonts, and structural metadata can quickly inflate PDF file sizes. Large PDFs are difficult to share via email (which often enforces a 20-25MB attachment limit) and slow down website load speeds. Compressing your PDFs makes them easier to share, saves storage space, and speeds up downloads. Our online PDF Compressor uses advanced optimization rules to reduce file sizes while keeping text and graphics readable.

Understanding PDF Compression Methods

PDF compression works by optimizing the internal structures of the document:

Image Downsampling: Reducing the resolution of embedded graphics to 150 DPI, which is ideal for screens.
Removing Metadata: Stripping out XML logs, edit histories, and unused color profiles.
Font Subsetting: Stripping out unused characters from embedded font files to keep only the active letters.
Local Security: The compressor runs entirely in your browser using local resources. Your files are never uploaded, keeping confidential documents safe.

How to Compress Your PDFs

Follow these steps to optimize your files:

Upload PDF: Select the document you wish to compress.
Select Compression Ratio: Choose between standard compression or high compression.
Download: Save the compressed PDF. All processing happens in-browser, ensuring data security.

FAQs on PDF Compression

Will my text quality be preserved?

Yes. Text characters and vector outlines are preserved without any loss of readability. Only embedded raster images are compressed.

Are my tax and legal documents safe?

Yes. Because the tool operates locally on your machine, your confidential documents are never uploaded to our servers, ensuring complete privacy.

What is the typical reduction size?

Most PDFs with embedded images can be reduced by 50% to 80% without visible quality loss.

🛡️ Privacy & Security Guarantee

We prioritize your brand safety and data integrity. All file conversions, checks, and updates are processed client-side. Your inputs are never stored, indexed, or shared with third parties.

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