Validate and preview a PDF
Validate a PDF, render its first page and inspect page thumbnails locally. The document never leaves your browser.
Runs locallyNo uploadFiles are deleted when you leave
PDF compatibility check
Parsing, page checks and editing validation use lazy local workers. Only bounded preview canvases are created on this page.
Password-protected, damaged or over-limit PDFs are identified before editing. JavaScript inside a PDF is never executed.
Your PDF stays in this tab. No document bytes are uploaded.