PDF Expert vs Sejda
Side-by-side comparison of features, pricing, ratings, and alternatives.
PDF Expert is a PDF editor and reader made by Readdle, a company founded in 2007, used by more than 30 million people worldwide with a 4.7-star rating across 211K reviews. It lets users edit text, images, and links directly inside a PDF, fill and sign forms with formula support, and manage pages by merging, rearranging, extracting, deleting, or rotating them. Beyond editing, PDF Expert includes OCR text recognition, a PDF Copilot AI assistant, PDF translation, and conversion to Word, Excel, PowerPoint, and JPG formats. It also offers annotation tools such as notes, highlights, stamps, audio notes, and drawing, plus multiple reading modes, and has been recognized by Apple as an Editors' Choice and App of the Year runner-up.
Sejda is a browser-based and desktop PDF toolkit offering more than 30 tools for editing, merging, splitting, compressing, and converting PDF documents without installing heavy software. It supports fill-and-sign workflows, password protection, OCR for scanned files, and batch operations like Bates numbering.
- Deep, desktop-grade editing tools rarely found in mobile PDF apps
- Native Mac and iOS apps feel fast and well integrated with Apple devices
- Strong annotation and signing toolset for reviewing and approving documents
- Offers both subscription and one-time Lifetime purchase options for Mac
- Wide range of PDF tools in one place
- No installation needed for the web version
- Offline desktop app available for privacy-sensitive work
- Files are deleted from servers after processing
- Only available on Apple platforms, with no Windows, Android, or web version
- Full editing features require a paid subscription or lifetime license
- Lifetime license only covers the Mac app, not iPhone or iPad
- Free tier has strict page and hourly limits
- Some advanced features require a paid plan
- Desktop app requires a separate paid license from web access
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Feature-rich Windows PDF editor with OCR, forms, and a perpetual license model.
AI-enhanced PDF editor for editing, converting, OCR, and e-signing documents.
Alternatives to Sejda
View all →Feature-rich Windows PDF editor with OCR, forms, and a perpetual license model.
The Verdict
AI-generated from listing dataSejda offers a cross‑platform web/desktop PDF suite with basic free limits and strong privacy controls, while PDF Expert delivers deep native Mac/iOS editing, AI assistance, and device sync at a higher price.
Key differences
- •Platform support – Sejda works in any browser and has a desktop app; PDF Expert is Apple‑only.
- •Editing depth – PDF Expert provides desktop‑grade editing and an AI copilot; Sejda’s advanced tools require a paid plan.
- •File sync – PDF Expert syncs across Mac, iPhone, and iPad; Sejda has no built‑in cross‑device sync.
- •Pricing model – Sejda’s desktop app needs a separate license from its web tier; PDF Expert offers subscription or one‑time lifetime options.
- •Privacy handling – Sejda automatically deletes uploaded files after processing; PDF Expert stores files locally and syncs via a shared account.
Pricing & value
Both are freemium; advanced features require payment in each, with Sejda needing separate desktop license.
Ease of use / learning curve
Sejda works instantly in a browser with no install, lowering entry friction versus native Mac/iOS apps.
Features & depth
PDF Expert offers deeper editing, AI assistance, and richer annotation tools than Sejda’s basic web features.
Integrations & ecosystem
Sejda’s cloud SaaS is OS‑agnostic; PDF Expert is limited to Apple devices.
Collaboration
PDF Expert syncs documents across Mac, iPhone, and iPad, enabling easy cross‑device collaboration.
Scalability
Sejda’s cloud infrastructure can handle many users, whereas PDF Expert is a local desktop app.
Support
PDF Expert provides priority support for paid plans; Sejda only offers email support.
Security & privacy
Sejda automatically deletes files after processing and offers an offline desktop app for sensitive work.
Choose PDF Expert if…
Mac/iOS power users who want deep native editing, AI help, and device sync, and are willing to pay.
Choose Sejda if…
Users needing occasional PDF edits on any OS, preferring web access and automatic file deletion.
Common questions
Can I use the tool on Windows or Android?
Sejda works in any browser and has a desktop app for Windows; PDF Expert is only available on macOS, iPhone, and iPad.
What happens to my files after I finish editing?
Sejda automatically deletes uploaded files from its servers after processing; PDF Expert stores files locally and syncs via the user’s account.
Is there an AI assistant to help with document work?
PDF Expert includes a PDF Copilot AI assistant; Sejda does not offer any AI features.