Have questions? We've got answers. Here are some of the most common things people ask about PDF2Seer.
Absolutely. This is the most important feature of PDF2Seer. All processing happens 100% locally in your web browser. Your files are never uploaded to any server, which means we—or anyone else—can never see them. Your privacy is guaranteed.
Yes, it's completely free, and there's no catch. There are no hidden fees, no subscription plans, no usage limits, and no premium-only features. We believe essential tools should be accessible to everyone.
After you load the website for the first time, most tools will work completely offline! Because all the processing libraries are loaded into your browser, you can disconnect from the internet and continue to merge, split, compress, and edit your PDFs securely. Some niche tools that require external data (like Markdown to PDF with web images) may need a connection.
No, we do not impose any artificial limits on file size, the number of files, or how many times you can use a tool. The only practical limitation is the processing power and memory of your own computer, as very large or complex files may take longer to process.
Failures are rare but can happen for a few reasons: the PDF might be corrupted, encrypted with a password you do not have, or it may be a special XFA/dynamic form-based PDF that some tools cannot process.
We care about your privacy. PDF2Seer does not track personal information. We only use analytics to see anonymous visit counts. This means we can know how many users visit our site, but we never know who you are.
PDF2Seer is built with modern web technologies. We primarily use JavaScript libraries such as PDF-lib.js and PDFKit.js, plus WebAssembly where needed, so powerful PDF processing can happen directly in your browser without your data leaving your device.
If you can't find the answer you're looking for, feel free to reach out to our support team. We're always happy to help.
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