Yes, at least once to activate the license. After activation, you can work offline indefinitely, but you need to log in again to receive major version updates.
Verdict: PDF Architect offers a balanced approach—less restrictive than Adobe but more secure than fully offline tools. Q1: Can I use PDF Architect without ever logging in? Yes, as a basic PDF viewer. However, you cannot edit, convert, OCR, or e-sign documents without a logged-in license. pdf architect login
This is usually a graphics driver or .NET framework issue. Update your Windows Display Drivers and install the latest .NET Runtime from Microsoft. Yes, at least once to activate the license
| Feature | PDF Architect | Adobe Acrobat Pro | Foxit PhantomPDF | | :--- | :--- | :--- | :--- | | | Yes (cached for 30 days) | No (requires periodic online check) | Yes | | SSO Support | Azure AD & Okta | All major providers | Limited | | Free Tier Login | Optional (viewer works without login) | Required even for free trial | Optional | | Device Limit | 3 devices | 2 devices | 5 devices | Q1: Can I use PDF Architect without ever logging in