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Compresor de PDF — Herramienta online gratis

Limpia y aligera PDFs sin recomprimir las imágenes (los escaneos apenas se reducen)

Limpieza de PDF sin pérdidas en tu navegador: elimina metadatos y reempaqueta objetos, sin recomprimir imágenes, por lo que los PDF escaneados o de fotos apenas se reducen. Gratis, sin subir archivos.

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Free PDF compressor — shrink file size in your browser

Herramientaolis PDF Compressor reduces PDF file size by stripping metadata and optimizing the PDF object structure. Fast, private, and browser-based. Best for shrinking PDFs for email attachments, cloud storage, or web upload limits.

How to use this tool

  1. 1

    Upload a PDF

    Drop your PDF or tap to browse. File size appears once loaded.

  2. 2

    Click Compress

    The tool strips metadata, unused objects, and optimizes compression streams. Works best on PDFs with bloated metadata or unoptimized structure; scanned or photo PDFs may barely shrink.

  3. 3

    Compare before and after

    The result shows original vs compressed size. Download if the savings are meaningful.

What this tool does

  • Removes metadata — Author, creation tool, edit history, timestamps
  • Removes unused objects — Orphaned resources, duplicate font subsets
  • Optimizes object streams — More compact PDF syntax
  • Preserves visual content — No image recompression, no quality loss

What this tool doesn\'t do

  • Resample / recompress embedded images (desktop tools do this)
  • Convert color → grayscale
  • Downsample fonts

For those, use Adobe Acrobat Pro, Ghostscript, or a dedicated online service.

Frequently Asked Questions

How much compression can I expect?
Savings vary. PDFs with bloated metadata or unoptimized structure can shrink noticeably, while scanned or photo-based PDFs usually shrink little because the images are not recompressed. Pure text PDFs may not compress much — they're already small.
Why is browser-based PDF compression limited?
The biggest PDF bloat is uncompressed embedded images. Proper image recompression requires decoding, resizing, and re-encoding — which would take much longer than server-side tools. This tool focuses on safe, fast object-level optimization.
Will compression affect quality?
No visible quality loss from this tool. We don't resize or recompress images here — only remove metadata and optimize PDF structure. Your document remains pixel-identical.
Are my PDFs uploaded?
No. All processing happens in your browser. Perfect for confidential business documents, medical records, or financial statements.
What if the file gets bigger after compressing?
Rare but possible. If the original was heavily optimized already, pdf-lib's output might be slightly larger due to different object ordering. The tool warns you and you can keep the original.
For bigger savings, what should I do?
For serious compression (50%+), use desktop tools like Adobe Acrobat Pro (which resamples images to 150 DPI) or online services that do image resampling. This tool is fast and private — it trades max compression for never touching your data.

Puntos clave

  • PDF Compressor is a free, browser-based pdf tool — clean up and slim down pdfs without recompressing images (scans may barely shrink).
  • No signup, no downloads, no file uploads. Herramientas run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use PDF Compressor

  1. Open the tool: Launch PDF Compressor on Herramientaolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

PDF Compressor — Quick Facts

Precio
Gratis — sin límites, sin marcas de agua, sin paywall
Privacidad
Se procesa en tu navegador. Las herramientas que necesitan un servicio externo lo indican en la página. Se cuentan las visitas (Google Analytics).
Plataforma
Cualquier navegador moderno — escritorio, tablet o móvil
Categoría
PDF Herramientas on Herramientaolis
Sin conexión
Works offline after first visit (Progressive Web App)
CaracterísticaDetalles
HerramientaPDF Compressor
CategoríaPDF
Requiere registroNo
Subida de archivoNinguno — procesado en el navegador
Compatible con móvilTotalmente adaptable
CosteGratis para siempre

Why Use PDF Compressor?

You should try PDF Compressor for a quick, private way to clean up and slim down pdfs without recompressing images (scans may barely shrink). Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacidad. Esta herramienta funciona enteramente en tu navegador. Tus datos nunca se suben a ningún servidor.