Compresseur PDF — Outil en ligne gratuit
Nettoie et allège tes PDF sans recompresser les images (les scans ne rétrécissent presque pas)
Nettoyage de PDF sans perte dans ton navigateur : supprime les métadonnées et réorganise les objets, sans recompresser les images, donc les scans et les PDF de photos rétrécissent peu. Gratuit, sans envoi de fichier.
📚 En savoir plus
Free PDF compressor — shrink file size in your browser
Outilolis 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
Upload a PDF
Drop your PDF or tap to browse. File size appears once loaded.
- 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
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 — Non 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?
Why is browser-based PDF compression limited?
Will compression affect quality?
Are my PDFs uploaded?
What if the file gets bigger after compressing?
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?
À retenir
- PDF Compressor is a free, browser-based pdf tool — clean up and slim down pdfs without recompressing images (scans may barely shrink).
- Non signup, no downloads, no file uploads. Outils 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
- Open the tool: Launch PDF Compressor on Outilolis — no account or download needed.
- Enter your data: Paste text, enter values, or select a file directly in your browser.
- Get instant results: Everything is processed locally — results appear immediately.
- Copy or download: Save your output or share it. Bookmark for quick access next time.
PDF Compressor — Quick Facts
- Prix
- Gratuit — sans limites, sans filigrane, sans paywall
- Confidentialité
- Traité dans votre navigateur. Les outils qui ont besoin d’un service externe l’indiquent sur la page. Les visites sont comptabilisées (Google Analytics).
- Plateforme
- Tout navigateur moderne — desktop, tablette ou mobile
- Catégorie
- PDF Outils on Outilolis
- Hors ligne
- Works offline after first visit (Progressive Web App)
| Caractéristique | Détails |
|---|---|
| Outil | PDF Compressor |
| Catégorie | |
| Inscription requise | Non |
| Téléversement de fichier | Aucun — traité dans le navigateur |
| Compatible mobile | Entièrement adaptatif |
| Coût | Gratuit pour toujours |
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.