About

PDF Highlighter & Markup helps you mark important parts of a PDF and share the result without changing the original file. Open a document from your device, draw translucent highlights directly on the page, and export a new PDF with your marks included.

The app is built for reading study materials, reviewing contracts, checking reports, filling review notes on forms, and sharing highlighted documents from your phone.

Your selected PDF is processed on your device. The original PDF stays unchanged, and the exported file is created only when you choose to share it.

Features

Freehand and Straight Highlights
Draw natural freehand marks or clean straight highlight lines over PDF pages.
Colors and Thickness
Choose multiple highlight colors and thin, medium, or thick stroke presets.
Zoom for Small Text
Zoom in, move around in view mode, and reset to the fitted page when you are done.
Erase and Undo
Remove selected highlights or undo the most recent mark on the current page.
Page-by-Page Markup
Move between pages while keeping each page's highlights organized separately.
Share-Ready Export
Create a new PDF with visible markup and share it through your device's share sheet.

How to Use

  1. Open the app and select a PDF from the system file picker.
  2. Use page controls to move to the page you want to mark.
  3. Choose highlighter mode, color, thickness, and freehand or straight-line drawing.
  4. Zoom in for small text, or switch to view mode to move around while zoomed.
  5. Erase marks or undo the latest highlight if needed.
  6. Create a share-ready PDF and send it through the Android or iOS share sheet.