PDF Converter 2026
Free 8-in-1 PDF converter. PDF to images, merge, split, rotate, compress, extract, watermark. Secure local processing.
Convertisseur PDF gratuit et sécurisé. 8 outils professionnels : PDF vers images, fusionner, séparer, rotation, compression, extraction pages, filigrane. Traitement 100% local - vos fichiers ne quittent jamais votre ordinateur.
Choisir une conversion PDF
PDF → Images
JPG, PNGImages → PDF
Créer PDFFusionner
Merge PDFSéparer
Split PDFRotation
90°, 180°, 270°Compresser
Réduire tailleExtraire Pages
SélectionFiligrane
WatermarkUpload fichiers
Glissez-déposez vos fichiers ici
ou
Gratuit : 3 conversions/jour, max 10MB par fichier
Fichiers (0)
Options
Résultat
Limite atteinte
Vous avez utilisé vos 3 conversions gratuites aujourd'hui.
Version PRO (9.90€/mois) : Illimité Passer PRO
Convertisseur PDF gratuit 2026 : 8 outils en 1
Notre convertisseur PDF professionnel offre 8 outils de manipulation PDF entièrement gratuits. Contrairement aux services traditionnels, tous les traitements s'effectuent localement sur votre ordinateur via JavaScript : vos fichiers ne sont jamais uploadés, garantissant confidentialité totale.
Les PDF restent le format universel pour partager documents, contrats, factures. Notre suite d'outils permet de convertir PDF en images JPG/PNG, fusionner plusieurs PDFs, séparer pages, compresser, faire pivoter, extraire pages spécifiques et ajouter filigranes.
Les 8 outils PDF professionnels
- PDF vers Images : Convertissez chaque page en JPG ou PNG haute qualité (72-300 DPI)
- Images vers PDF : Créez un PDF à partir de photos JPG/PNG (jusqu'à 50 images)
- Fusionner PDF : Combinez plusieurs PDFs en un seul document unifié
- Séparer PDF : Divisez un PDF en fichiers individuels (1 page par PDF)
- Rotation PDF : Faites pivoter toutes les pages de 90°, 180° ou 270°
- Compresser PDF : Réduisez la taille jusqu'à 70% sans perte visible
- Extraire Pages : Sélectionnez pages spécifiques (ex: 1,3,5-8,12)
- Filigrane PDF : Ajoutez watermark texte personnalisé (CONFIDENTIEL, etc.)
Sécurité : traitement 100% local
Vos fichiers ne quittent JAMAIS votre ordinateur. Notre convertisseur utilise pdf-lib, PDF.js et jsPDF côté client. Aucun upload serveur = confidentialité totale pour documents sensibles (contrats, RH, finance).
Gratuit vs PRO
| Conversions/jour | 3 gratuit | Illimité PRO |
| Taille max fichier | 10 MB | 100 MB PRO |
| Qualité export | Standard | 300 DPI PRO |
Frequently asked questions
Our PDF converter offers 3 major advantages over competitors. First, SECURITY: all processing is done locally in your browser via JavaScript (pdf-lib, PDF.js, j...
Our PDF converter offers 3 major advantages over competitors. First, SECURITY: all processing is done locally in your browser via JavaScript (pdf-lib, PDF.js, jsPDF libraries). Your files are never uploaded to a server, unlike iLovePDF and Smallpdf which send your PDFs to their servers. This guarantees total confidentiality for sensitive documents (contracts, HR, finance, medical data). Second, SPEED: no server upload/download means instant processing. A 50-page PDF converts to images in 10 seconds instead of 30-60 seconds with competitors. No server queue, no network slowness. Third, GENEROSITY: free version offers 3 conversions/day (vs 2/day at iLovePDF and Smallpdf), files up to 10MB (vs 5MB sometimes), and 8 complete tools without functional limitation. PRO version at €9.90/month (vs €12-15 at competitors) unlocks unlimited conversions, 100MB files, 50-file batch processing, 100-language OCR, Ultra 300DPI quality, and 0 ads. Technically, our client-side approach also allows offline operation after first page load, and perfectly respects GDPR (no data collected).
Local processing works through 3 powerful JavaScript libraries executed directly in your browser: pdf-lib (PDF manipulation: merge, split, rotate, extract, wate...
Local processing works through 3 powerful JavaScript libraries executed directly in your browser: pdf-lib (PDF manipulation: merge, split, rotate, extract, watermark), PDF.js developed by Mozilla (PDF reading and rendering to HTML5 canvas), and jsPDF (creating new PDFs from images). Here's the technical flow: 1) You select a PDF or image file via the interface. 2) The file is loaded into your computer's RAM memory via JavaScript FileReader API (no network transmission). 3) The file is processed locally: PDF.js decodes it to canvas, pdf-lib manipulates its internal structure, jsPDF generates new PDFs. 4) The result is generated in memory then downloaded via Blob/URL.createObjectURL to your Downloads folder. AT NO TIME does the file transit via Internet or remote server. You can verify in your browser's developer tools (Network tab): 0 HTTP request containing PDF data after initial page load. Even without internet connection (after first page load), conversions work. Guaranteed security for: confidential contracts, HR/payroll documents, bank statements, medical files, intellectual property. Full GDPR compliance: no personal data collected, processed or stored (localStorage only contains free conversions counter, without file data). Technical limitations: local processing consumes RAM (very large files 100MB+ may slow browser) and CPU (conversions on old PCs may take 20-30 seconds vs 5-10 seconds on recent machines). PRO version optimizes algorithms for maximum performance.
JPG (JPEG) and PNG are two image formats with distinct characteristics, each optimal for different uses. JPG (Joint Photographic Experts Group): COMPRESSED form...
JPG (JPEG) and PNG are two image formats with distinct characteristics, each optimal for different uses. JPG (Joint Photographic Experts Group): COMPRESSED format with loss. Algorithm reduces file size by eliminating imperceptible details to the eye. ADVANTAGES: files 50-70% lighter than PNG (a 2MB PDF page becomes 200-400KB JPG vs 800KB-1.2MB PNG). Ideal for email sharing (less bandwidth), massive archiving (saves storage), or web integration (faster loading). DISADVANTAGES: compression slightly degrades quality (artifacts on fine text, blurry edges), no transparency (background always opaque white/black). RECOMMENDED USE: PDF pages mainly containing photos, colorful images, visual presentations, or when file size is priority. PNG (Portable Network Graphics): LOSSLESS format. Compression preserves 100% original quality pixel by pixel. ADVANTAGES: perfect sharpness for text (ideal reports, invoices, legal documents), alpha transparency (background can be transparent to overlay on other background), exact preserved colors (crucial for graphics, logos, technical diagrams). DISADVANTAGES: files 2-3x bulkier than JPG, slightly longer processing time. RECOMMENDED USE: text documents (contracts, invoices, CVs), technical graphics (plans, diagrams, flowcharts), images requiring transparency, or when maximum quality prevails over size. PRACTICAL RULE: JPG for photos and visual presentations, PNG for text documents and graphics. Our converter offers both with preview before download to compare results. PRO version offers 300 DPI high-resolution PNG for professional printing (printers, posters, commercial brochures).
Yes absolutely! Our Merge PDF tool accepts unlimited number of PDF files in both free and PRO versions, unlike some competitors limiting to 2-5 PDFs free. TECHN...
Yes absolutely! Our Merge PDF tool accepts unlimited number of PDF files in both free and PRO versions, unlike some competitors limiting to 2-5 PDFs free. TECHNICAL LIMIT: browser (Chrome/Firefox/Edge) can handle up to 50-100 simultaneous PDFs depending on available RAM. Beyond that, risk of slowdown or browser crash on old machines (< 4GB RAM). HOW IT WORKS: drag-drop your PDFs in desired order, or click 'Select' for multiple upload (hold Ctrl/Cmd for multiple selection in file explorer). Interface displays list with thumbnail of each PDF and page count. Reorganize order by drag-drop before merging. Click 'Merge': pdf-lib algorithm copies all pages from each PDF in defined order to single document, preserving metadata (title, author, dates), bookmarks, internal hyperlinks. Export generates single downloadable PDF. USAGE EXAMPLE: group 12 monthly invoices year 2025 into 'Invoices-2025.pdf', combine book chapters (Chapter1.pdf + Chapter2.pdf... → Complete-Book.pdf), assemble quarterly reports (Q1.pdf + Q2.pdf + Q3.pdf + Q4.pdf → Annual-Report.pdf). PRO OPTIMIZATION: PRO version offers advanced batch processing with page thumbnail preview, ability to delete specific pages before merging, and automatic compression if result > 50MB. TIP: for > 50 bulky PDFs (> 500MB total), proceed in batches of 20-30 PDFs, then merge intermediate results. This avoids browser memory saturation. Check final size: Gmail/Outlook limit attachments 25MB, consider post-merge compression if necessary.
Publicité