Add a generation timestamp to the bottom-right corner of every page in your PDF. Everything runs locally in your browser — nothing is uploaded.
Inserts page number labels at user-chosen positions (bottom-center, top-right, etc.) with configurable font, size, and starting offset. Everything runs locally in your browser — nothing is uploaded.
Add custom text labels, annotations, and captions directly onto PDF pages. Choose font size, color, and position. Perfect for signing, marking up, or adding notes to documents.
Add professional headers and footers to every page of your PDF. Supports text, page numbers ({{page}}/{{total}}), dates, and custom alignment. Perfect for reports and official documents.
Generate and inspect invisible Unicode characters — zero-width space (ZWSP), zero-width non-joiner (ZWNJ), zero-width joiner (ZWJ), left-to-right/right-to-left marks, and word joiner. Copy raw bytes or visualizable forms.
Overlays custom text captions onto images with control over font, size, color, alignment, opacity, and rotation angle. Everything runs locally in your browser — nothing is uploaded.
PDF Timestamp lets you add a generation timestamp to the bottom-right corner of every page in your PDF. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Add a generation timestamp to the bottom-right corner of every page in your PDF. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Upload a file from your device. Drag and drop or use the file picker to select your document.
Yes. After the initial page load, PDF Timestamp runs entirely on your device with no internet connection needed. All processing is done locally.
Add a generation timestamp to the bottom-right corner of every page in your PDF. All processing runs locally in your browser — no files are uploaded to any server.
Yes. Your PDFs never leave your device. All operations happen in-browser using pdf-lib or similar local libraries.
Standard PDF files (versions 1.0–2.0). Encrypted or password-protected files may need to be unlocked first.
No hard limits, but very large PDFs (500+ pages or 100MB+) may process slower on low-memory devices.