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Compress PDF

Reduce file size for easier sharing.

All PDF Tools

Merge, split, compress, convert, edit, secure — every PDF task, free in your browser

What is Compress PDF?

Los PDFs grandes ralentizan el envío por correo, superan límites de carga y consumen espacio innecesario. El compresor de PDFStream reduce el tamaño directamente en el navegador, sin subir archivos ni esperar procesamiento remoto. La compresión optimiza la estructura interna del PDF y reduce la resolución de imágenes cuando es posible, logrando una reducción significativa sin pérdida visible de calidad en pantalla o impresión. Un informe de 10MB puede reducirse a menos de 3MB. Casos de uso: comprimir portafolios, optimizar presentaciones, reducir archivos escaneados para envío o liberar almacenamiento. Todo se procesa localmente, por lo que los documentos sensibles no salen del dispositivo.

How to use

  1. 1

    Select File

    Upload your PDF.

  2. 2

    Select Level

    Choose a compression level (Medium recommended).

  3. 3

    Compress

    Click 'Compress'.

  4. 4

    Download

    Download the optimized file.

FAQ

How much will it compress?

Depends on the content; image-heavy files compress very well.

Will quality suffer?

Low settings lose almost nothing. High settings might impact image quality.

Can I compress again?

Yes, but results will be minimal if already compressed.

What level to pick?

Medium is the best balance.

Is text quality affected?

No, text remains sharp.

Typical reduction?

Often 50-80% for image-rich documents.

Is 'High' bad for printing?

It may affect print quality; fine for screen viewing.

Can I compress text-only files?

Effect will be negligible.

Can I preview it?

No, but you see the final size after compression.

Can I process multiple files?

One at a time, or merge them first.

Last updated: June 26, 2026

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