Compress PDF to 1MB

Shrink high-resolution PDF documents to under 1MB quickly.

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Scan, chat with, and transform your documents. Convert, compress, merge, split and more — free to use.

Drag & drop your PDF here or PDF up to 50MB · or scan with your camera
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Three workflows a generic PDF converter does not cover.

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Compress, convert, edit and organise files in the formats people use most.

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Extraction, checking and question-answering for when converting a file is not enough.

Large multi-megabyte PDFs choke email inboxes and fail messaging app limits. Doclium compresses large presentation and brochure PDFs down to a lightweight 1MB file for fast sharing.

🔒 Never used for AI training: delete a document and it is gone from the server.
⚡ No watermarks: on any tool, including the free tier.
↩ Undo: step back through your last 10 edits.

How to compress PDF to 1MB

  1. 1Upload your large PDF (e.g. 10MB to 50MB).
  2. 2Doclium compresses high-resolution images down to a smooth 1MB target.
  3. 3Preview the optimized pages.
  4. 4Download your fast-loading 1MB PDF.

Questions people ask

Can I compress a 50MB PDF to 1MB?

Yes. High-resolution photos are balanced for web and screen presentation.

Will vector diagrams and text lose sharpness?

No. Vector lines and fonts stay infinitely scalable.

Is there a limit on how many files I can compress?

No daily caps or file limits on Doclium.

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