Convert PowerPoint to PDF
Turn your .pptx decks into PDFs that are easy to share. Everything happens in your browser — your file never leaves your machine.
- 100% local — vos fichiers ne quittent jamais votre navigateur
- Sans inscription, sans email, sans limite
- Créez un compte gratuit pour débloquer signature à distance, équipe et audit eIDAS
Why convert your PowerPoint to PDF with ModySign?
Sending a .pptx by email has several issues: not everyone has PowerPoint, Mac/Windows versions render slightly differently, and missing fonts break the layout. PDF fixes all that: one format, identical rendering everywhere, openable in any browser or PDF reader.
Most online converters (Smallpdf, iLovePDF, Adobe Online, ZAMZAR) upload your decks to their foreign servers. Unacceptable for an internal deck, a confidential sales proposal or strategic numbers. ModySign converts directly in your browser using jszip and pdf-lib — your file NEVER leaves your machine.
Heads up: our conversion is intentionally text-focused. Images, charts, animations and complex layouts are NOT reproduced. Useful for lightweight archiving, note-taking or import into another text tool. For perfect layout fidelity, export directly from PowerPoint (File > Export > PDF).
Questions fréquentes
Is the layout of my slides preserved?+
No, not exactly. Our conversion is intentionally 'text only': we extract the textual content from each slide and place it on a landscape A4 page. Images, charts, animations and precise arrangements are not reproduced. It's a clean text export, not a pixel-perfect render. For absolute fidelity, export from PowerPoint directly (File > Export > PDF).
Is my PowerPoint sent to your servers?+
No, never. The conversion runs entirely in your browser using jszip and pdf-lib. Your file NEVER leaves your machine — unlike Smallpdf, iLovePDF, Adobe Online or ZAMZAR which upload your decks to their foreign servers.
Why pick this tool if the layout isn't faithful?+
Three use cases: (1) you just need a readable PDF for archiving, (2) you want to extract the text of every slide to reuse elsewhere, (3) you don't have PowerPoint installed and need a PDF quickly. For these, our tool is more than enough and 100% private.
Are old .ppt files supported?+
No — only the modern .pptx format (Office Open XML) is supported because it is a ZIP with readable XML inside. The legacy binary .ppt (Office 97-2003) format isn't browser-friendly. Convert your .ppt to .pptx first via PowerPoint (Save As) or LibreOffice.
Is there a slide count limit?+
No limit on ModySign's side. The only constraint is your browser RAM — in practice decks of 100+ slides work fine.
Allez plus loin avec ModySign
Cet outil est gratuit pour toujours. Pour les fonctionnalités professionnelles (signature à distance, équipe, API, audit eIDAS), créez un compte — 14 jours d'essai sans carte bancaire.
Faire signer à distance par email
Envoyez un PDF à un client, il signe depuis son navigateur. Audit trail eIDAS inclus.
Modifier votre PDF
Ajouter du texte, dessiner, ajouter des formes, surligner — éditeur complet.
Tamponner votre PDF
Tampons Approuvé, Confidentiel, Payé, ou personnalisés.
Chiffrer un PDF (AES-256)
Protégez vos documents sensibles avec un mot de passe robuste.
Audit trail eIDAS
Horodatage, IP, hash — preuve juridique téléchargeable.
Équipe et collaborateurs
Jusqu'à 15 utilisateurs sur un même workspace, rôles personnalisables.
API REST + Webhooks
Intégrez la signature électronique dans votre propre app.
Sans carte bancaire. Sans engagement. Annulation en 1 clic.