How to Verify a Website's Privacy Claims Yourself
Practical techniques to independently verify whether websites handle your files privately, including DevTools and offline testing.
8 min read
Practical Guides
This category contains practical, actionable guides for working with documents. The articles explain how to accomplish specific tasks, verify tool behaviour, and avoid common mistakes. These are neutral how-to explanations focused on techniques rather than specific products.
Frequently asked questions
Common questions about practical guides.
How do I merge multiple PDFs into one?
Select all the PDF files you want to combine, arrange them in the desired order, and use a merge function. The process combines the pages sequentially into a single document. This can be done locally without uploading files.
How can I reduce the file size of a PDF?
PDF compression typically works by reducing image resolution, removing duplicate resources, and optimising internal structures. The effectiveness depends on the PDF content: image-heavy documents compress more than text-heavy ones.
How do I properly redact information in a PDF?
True redaction permanently removes content, not just covers it visually. Drawing black rectangles over text leaves the text accessible underneath. Proper redaction tools delete the underlying data entirely before flattening the document.
How can I verify a tool's privacy claims?
Open browser developer tools before using the tool. Watch the Network tab during file operations. Test with airplane mode after the page loads. Check if the tool works offline. These steps reveal whether files are processed locally or uploaded.
What should I check before using an online PDF tool?
Review the privacy policy for data retention terms. Check whether the tool works offline. Monitor network activity during use. Consider whether the document sensitivity warrants the convenience of online processing.
Related articles in the Learning Center
Reference material that covers these topics in more depth.
Explore other topics
Privacy & Security
Articles about file handling, uploads, browser security, and data protection.
How PDFs Work
Foundational explanations of PDF structure, formatting, and document standards.
Offline Tools
Articles about local processing, browser-based tools, and working without internet dependency.
Browser Technology
Explanations of modern browser capabilities relevant to document processing.