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PDF Compresseur

Compresser des PDF en ligne gratuitement — réduisez la taille jusqu'à 90% tout en préservant la qualité. Rapide, sécurisé et 100% dans le navigateur. Sans téléversement, sans filigrane.

PDF Compresseur is a free online outils pdf tool that runs entirely in your browser — your files never leave your device and are never uploaded to any server. No installation, no signup; works on both phone and desktop, ready to use instantly.

Tout le traitement PDF s'éxécute entièrement dans votre navigateur, sans aucun téléchargement vers un serveur. Propulsé par WebAssembly et les API modernes du navigateur, offrant une vitesse de niveau desktop tout en gardant vos documents privés.

How to use

  1. 1 Ouvrez la page de l'outil PDF Compresseur.
  2. 2 Collez votre texte, URL ou données dans la zone de saisie.
  3. 3 Choisissez le mode d'opération et les paramètres.
  4. 4 Exécutez l'outil et consultez le résultat.
  5. 5 Copiez ou téléchargez le résultat.

Why we built this tool

We noticed most online PDF tools require uploading sensitive documents to remote servers. Since privacy is our core principle, we built our PDF suite to process everything locally in your browser — your files never leave your device.

About PDF Compresseur: what you should know

Administrative staff and paralegals assembling document packages for clients or courts. When you need to merge, split, or reorder pages across multiple PDFs, doing it in the browser is faster than opening each file in a desktop reader one by one.

Key features

  • Zero Server Upload — All PDF processing runs locally in your browser using pdf-lib and pdf.js. Confidential contracts and personal documents never touch an external server.
  • Visual Page Preview — See thumbnail previews of your pages before confirming the action. This prevents mistakes when selecting page ranges or reordering documents.
  • Multi-File Support — Upload one or several PDF files and process them together. Drag to reorder if needed — the tool handles batches without choking on large documents.

Common use cases

  • Extracting Pages for a Quote or Invoice — Pull just the relevant pages out of a long PDF to send to a client, instead of forwarding the entire 50-page document.
  • Combining Scans into One File — A multi-page document scanned as separate images needs to become one PDF. Merge them in order so the recipient sees a complete file.

Questions fréquentes

Cet outil est-il gratuit ?

Oui, entièrement gratuit sans inscription.

Puis-je l'utiliser sur mobile ?

Oui, il fonctionne sur les navigateurs mobiles avec support tactile.

À quelle catégorie appartient-il ?

Outils PDF

Mon PDF est-il envoyé vers un serveur pendant le traitement ?

Non. Tout le traitement PDF s'effectue localement dans votre navigateur. Vos fichiers ne quittent jamais votre appareil.

Quelle taille de fichier PDF est prise en charge ?

Le traitement s'exécutant localement dans votre navigateur, la taille dépend de la mémoire de votre appareil. Les PDF de moins de 100 Mo se traitent généralement sans problème.

Can I merge PDFs without losing quality?

Yes. ToolPure uses lossless merging — the output PDF preserves original resolution, color depth, and embedded fonts. All processing happens locally in your browser, so your documents never leave your device.

How many PDF files can I process at once?

You can merge up to 50 PDF files in a single operation, with each file up to 2GB. Files are processed in the order you add them, and you can drag to reorder before merging.

What PDF standards and versions are supported?

The tools support PDF versions 1.0 through 2.0 (ISO 32000-2), including PDF/A archival standard. Encrypted PDFs require the correct password for processing.

Is PDF Compresseur safe? Is my data uploaded or stored?

Yes. PDF Compresseur runs entirely in your browser: files you select are never uploaded to any server — all processing happens in your device's memory and is wiped when you close the page.

🔒 Privacy & Security:All processing happens locally in your browser. Files are never uploaded or stored.

🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.

📖 How-To Guides

🏆 Best Tools Lists

💸 Paid Tool Alternatives

PDF Compresseur is a free alternative to the following paid tools — see the full comparison:

Smallpdf alternative → iLovePDF alternative →