Supported PDF and image tools are designed to process selected files locally in your browser rather than upload them to PDFtools4u servers. The website also loads assets and analytics, which may send separate technical and usage information. Processing details can vary by tool.
| Architecture Metric | PDFtools4u (Local) | What this means |
|---|---|---|
| File Processing Location | Supported operations run in the browser | Check each tool's instructions for its processing path |
| Data Upload Bandwidth | Designed not to upload selected files to our servers | The site still requests assets and analytics |
| Storage & Retention | No server-side file retention as part of supported local processing | Browser memory and temporary object URLs are controlled by the browser |
| Decryption & Passwords | Check the specific tool's documented flow | Do not assume all sites or tools handle credentials the same way |
| Legal and compliance status | Local processing does not itself establish compliance. Assess your obligations and the site's analytics and other network activity. | |
Supported operations are designed to read selected files in browser memory instead of uploading them to PDFtools4u servers. The website still makes separate requests for assets and analytics.
We compile heavy processing libraries (like PDF and image manipulation engines) into WebAssembly. This allows your browser to execute complex operations at near-native speed without relying on a backend cloud cluster.
Supported file processing does not create a server-side copy as part of the operation. The browser manages in-memory data and temporary object URLs; close the page when finished, and avoid using shared devices for sensitive files.
The site may use browser storage for operation. Analytics services can separately process usage or performance information as described in our Privacy Policy.
Use the Network panel to compare requests before and during a specific operation. The page can make asset or analytics requests, so inspect their destinations and payloads instead of assuming there are no network requests.
Clear answers about supported local processing, analytics, and what this architecture does not guarantee.