How much will my PDF shrink?

It depends on what's inside the PDF. Documents that are mostly text with light structure optimization can shrink noticeably. The biggest gains come from PDFs with large embedded images or unused metadata.

Will compression affect text quality?

No. Text and vector graphics in PDFs are not affected — they stay perfectly sharp. Only redundant data and metadata are removed.

My PDF is still large after compression — why?

If your PDF contains many high-resolution photos embedded as images, deeper image recompression (which requires specialized server-side tools) would be needed. Our tool focuses on structure-level optimization.

Is the compressed PDF still searchable?

Yes. We don't flatten or rasterize the PDF. All text remains selectable and searchable after compression.

Can I compress a password-protected PDF?

We attempt to process encrypted PDFs, but results vary. For best results, remove the password protection before uploading.

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Compress PDF files online for free. Reduce file size while maintaining quality.

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Frequently asked questions

Compress PDF Online Free — Reduce PDF File Size Instantly

PDFs quickly grow large when they contain high-resolution images, embedded fonts, or scanned pages. Our PDF compressor reduces file size by optimizing images, removing duplicate data, and applying lossless compression — while keeping text sharp and readable. Whether you need to send a PDF by email, upload it to a portal, or save storage space, compression makes it practical.

Reduce by up to 90%

Heavy scan-based PDFs can be reduced dramatically. The optimizer targets the largest contributors to file size first.

Text stays sharp

Unlike naive compression tools, we preserve vector text and fonts so your document remains crisp and searchable.

Secure & private

PDF files are processed on our servers, never stored, and permanently deleted after you download.

Email providers often reject attachments over 10 MB, and many online portals have strict upload limits. Compress your PDF to fit within any limit without sacrificing readability.