Add visual annotations like highlights, underlines, strikeouts, and shapes to your PDF pages. Perfect for reviewing documents, marking up text, and adding visual emphasis. 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.
Insert images (PNG, JPG) onto any page of your PDF document. Position and resize images anywhere on the page. Perfect for adding signatures, logos, or photos to documents.
Add a Table of Contents to your PDF documents. Organize pages with titled sections, create nested hierarchies, and navigate large documents with ease. Perfect for reports, ebooks, and manuals.
Reduces JPG, PNG, and WebP file sizes using smart compression with a side-by-side quality preview slider. Balance file size and visual quality visually — max 20MB per image. Perfect for web optimization, email attachments, and social media uploads.
Generates Unicode-styled text variants for bold, italic, monospace, fraktur, script, serif, and sans-serif — optimized for code comments, design mockups, Discord formatting, and technical documentation where visual emphasis matters beyond standard fonts.
PDF Annotator lets you add visual annotations like highlights, underlines, strikeouts, and shapes to your PDF pages. Perfect for reviewing documents, marking up text, and adding visual emphasis. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Add visual annotations like highlights, underlines, strikeouts, and shapes to your PDF pages. Perfect for reviewing documents, marking up text, and adding visual emphasis. 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 Annotator runs entirely on your device with no internet connection needed. All processing is done locally.
Add visual annotations like highlights, underlines, strikeouts, and shapes to your PDF pages. Perfect for reviewing documents, marking up text, and adding visual emphasis. 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.
eSign PDF
Places a typed, drawn, or uploaded signature image onto a specific page and coordinate of a PDF document. No signup or account required.
PDF Form Filler
Detects interactive form fields in a PDF and provides a clean UI to fill text inputs, checkboxes, and dropdowns before downloading the completed. Everything runs locally in your browser — nothing is uploaded.