PDF DocOfficeBrowser-Based vs Server-Based PDF Tools: How Your Files Are Handled
Two ways an online tool can work
When you use a website to work on a PDF, the actual processing can happen in one of two places. In a server-based tool, your file is uploaded to a computer run by the website, processed there, and the result is sent back. In a browser-based tool, the website sends code to your browser, and your own device does the work. The file never travels anywhere.
Why browser processing is better for privacy
If the file never leaves your device, no one else can store, read or lose it. It is also faster for many jobs because there is no upload and download time. Tasks such as merging, splitting, compressing, rotating and signing can all be done this way with modern browser technology.
On PDF DocOffice, most tools work like this.
When a server is needed
Some jobs are too heavy or too complex for a browser. Rebuilding the layout of a PDF as an editable Word file, reconstructing tables for Excel, and reading text from a picture with OCR need more processing power and specialised software. For those, a server is the practical option.
On our site, three tools use a server: PDF to Word, PDF to Excel, and Image to Excel or Word. Everything else runs in your browser.
How our server conversions treat your file
Files for these three tools are sent over an encrypted HTTPS connection, converted, and returned to you. Under our zero-storage policy, the uploaded file and the converted result are permanently deleted as soon as the download is complete. We do not keep backups or read your documents. These conversions accept files up to 50 MB.
How to protect yourself with any tool
Prefer tools that clearly say what happens to your file. Check that the address begins with https. For confidential documents, choose a browser-based tool where possible, remove metadata you do not need to share, and avoid uploading documents that contain ID numbers or financial data to services you do not trust. Keep your own backups of originals.
Related guides
- How to Merge Multiple PDF Files into One Document
- How to Convert a PDF to an Editable Word Document (DOCX)
- How to Choose a Strong PDF Password and Share It Safely