🧩 Compress PDF Online Free
Reduce the file size of a PDF while keeping the content readable.
How to Compress a PDF
- Upload a PDF file that is too large
- Choose Standard or Maximum image compression
- Click "Process" to compress the document
- Download your optimized PDF
Why Large PDFs are hard to email and slow to upload. Compressing reduces file size while keeping the content readable. This is especially useful for PDFs with many pages or embedded high-resolution images.
Why is my PDF so large? The usual culprits: high-resolution images and photos embedded in the document (a 10MB scan of photos), embedded fonts, and metadata left over from editing tools.
What is the difference between Standard and Maximum? Both settings recompress some embedded images; Maximum uses stronger lossy compression. The tool does not change text stored as text, but image-based text and graphics may lose detail. Already compressed images may be left unchanged, so file-size savings vary.
Can I compress a PDF below 1MB? Depends on the content. A text-only PDF is already tiny; a PDF full of photos can often be reduced by 60-80% with Maximum compression.
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