Does the PDF checker read my document content?

No, our PDF authenticity checker does not read or store your document content. While we temporarily load the PDF file into memory for technical analysis, we only examine file structure, metadata, and PDF formatting information—never extracting or reading the actual text, images, or content within your PDF files.

This privacy-focused approach means sensitive documents remain completely confidential. The PDF verification process examines file structure, creation/modification dates, creator/producer information, digital signatures, and structural elements like xref tables and incremental updates.

We extract metadata such as filename, file size, page count, and PDF version, but never access or extract document content. This makes our PDF modification detection service safe for confidential documents including contracts, financial statements, personal records, and proprietary information. Your document content is never read, extracted, or stored—only technical metadata and structural information that helps determine PDF authenticity.