Can I annotate a scanned PDF?
Yes. Annotation boxes are overlaid on top of any PDF including scanned documents.
PDF
Annotate
ToolerWork in-browser utility
Annotate helps you finish the current pdf task faster with a browser-first workflow and cleaner output.
No signupBrowser firstMobile friendlyPrivacy-first
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Browser-based · Free
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Annotate PDF
Add highlight boxes on specific areas and export the annotated PDF.
File
No file
Page
-
Boxes
0
Drop your PDF here
or drag and drop here
Supports PDF
Files are processed securely in your browser. Nothing is uploaded.
Click preview to set box position. Current point: not selected
Upload a PDF to start editing.
Frequently asked questions
Is my PDF uploaded to a server?
No. All annotation processing happens in your browser. Your file never leaves your device.
Can I choose the annotation color?
Yes. You can pick highlight color and opacity to match your review needs.
Does this work on mobile?
Yes. The annotation tool works in modern mobile browsers without any plugin.
About this tool
Annotate
Annotate PDF pages with visual highlight boxes and export a marked-up version quickly.
Annotate is a focused pdf utility built for users who need review notes, feedback rounds, and visual emphasis on documents without complex setup. The workflow accepts one PDF file with target sections and produces annotated PDF with overlay highlights through a clean browser interface that is easy to understand for first-time users and still efficient for frequent users. Instead of switching between multiple apps, this tool keeps key controls in one place so you can complete the task faster, validate the output, and move to the next step with minimal friction. It is designed for practical day-to-day execution, including office work, study tasks, content operations, and lightweight professional workflows where speed and clarity matter. You can use it from desktop or mobile, apply settings based on your use case, and export reliable output with consistent quality. For most scenarios, this approach offers faster turnaround and less operational overhead than manual workflows. Annotate helps users finish pdf tasks with less friction and better consistency. Annotate helps users finish pdf tasks with less friction and better consistency. Annotate helps users finish pdf tasks with less friction and better consistency. Annotate helps users finish pdf tasks with less friction and better consistency. Annotate helps users finish pdf tasks with less friction and better consistency.
Best for
review notes, feedback rounds, and visual emphasis on documents
Input
one PDF file with target sections
Output
annotated PDF with overlay highlights
How to use this tool
- Prepare one PDF file with target sections for processing.
- Configure tool options based on your output requirement.
- Review preview or result quality before final export.
- Export annotated PDF with overlay highlights and run a quick validation check.
Why users choose this tool
- Focused workflow for review notes, feedback rounds, and visual emphasis on documents.
- No-install workflow for quick PDF actions.
- Consistent output for business and academic documents.
- Time savings versus manual page-level editing.
- Reliable annotated PDF with overlay highlights generation with fewer manual steps.
Common use cases
- Annotate for fast pdf workflows in browser.
- Annotate when no-signup and privacy-first processing is preferred.
- Annotate for review notes, feedback rounds, and visual emphasis on documents.
- Annotate for teams that need predictable output quality and faster delivery.
When to choose this tool
Annotate is usually faster than manual pdf workflows because it reduces repetitive steps and keeps the complete flow in one interface. Compared with heavyweight desktop software, this tool prioritizes speed, accessibility, and simpler controls so users can finish routine tasks quickly without installation or licensing friction. For users who mainly need review notes, feedback rounds, and visual emphasis on documents, this focused approach often gives better execution speed and cleaner day-to-day usability, while still producing annotated PDF with overlay highlights that is suitable for practical work.
Privacy-first: Where browser-based processing is available, your files stay on your device. No file is uploaded to our servers unless strictly required for the tool to function.
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