Compress PDF files instantly.

Reduce your PDF file size by removing metadata and optimising the document structure. All processing happens in your browser — your files never leave your device.

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Original size
Compressed size
Reduction

Drop your PDF here or click to browse

Only PDF files are supported

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100% Private

PDF never leaves your device

Instant

No server round-trip

Removes metadata

Author, keywords, producer info

Reduce PDF file size for email and web sharing

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Significant Size Reduction

PDF files with embedded images can be compressed by 40–80% depending on content type and quality setting. Ideal for reducing PDFs before emailing or uploading to portals with size limits.

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Quality Control

Choose compression level — High Quality (minimal compression), Balanced, or Maximum Compression. Preview the size reduction estimate before downloading the compressed file.

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Browser-Based — Files Stay Local

Your PDF is never uploaded to a cloud service. Compression happens entirely in your browser, keeping sensitive financial documents, contracts, and reports completely private.


PDF Compressor — FAQ

How much can I compress a PDF?

Compression results vary by content. PDFs containing large high-resolution images compress the most (50–80% reduction). Text-only PDFs are already compact and compress very little (5–15%). PDFs with mixed content (text + images) typically compress by 30–50%.

Will compression make my PDF unreadable?

At Balanced compression, text remains crisp and readable. Only image quality is reduced — and even then, it remains clearly legible for screen viewing and standard printing. Use High Quality mode if the PDF contains critical medical images, technical diagrams, or will be printed at large scale.

Why is my PDF still large after compression?

Some PDFs contain fonts embedded as outlines, vector graphics, or other non-image content that cannot be compressed further. If your PDF is already text-heavy with no embedded images, you may see minimal size reduction regardless of the compression setting used.