Annotate PDF Online
Thousands of people use MiniPdfEditor every day to edit, compress, merge, and manage PDFs — effortlessly and securely.
How to annotate PDF files
Drag and drop your file, or click to browse and upload it from your device.
Use our tools to highlight text, draw shapes, insert comments, or apply stamps directly on your PDF.
When you're done, download your updated PDF with all annotations saved and ready to share.
Why choose our PDF annotation tool
Comprehensive Annotation Tools
Highlight, underline, add text, shapes, and comments to your PDFs with a full suite of annotation features.Real-Time Editing
Edit, move, or delete annotations instantly with an intuitive, responsive interface.Customizable Styles
Personalize your annotations with different colors, fonts, and sizes to match your workflow.Cross-Platform Access
Annotate PDFs on any device—desktop, tablet, or mobile. All you need is a web browser.No Installation Required
Start annotating PDFs immediately without downloading or installing any software.Secure & Private
Your documents and annotations are protected with end-to-end encryption throughout the process.
Frequently asked questions
Upload your PDF, select the Annotate tool, and choose from highlights, text, shapes, or drawings. Click anywhere on your document to add your annotation, then download your marked-up PDF instantly.
MiniPDFeditor lets you highlight, underline, strikethrough, add sticky notes, draw freehand, insert shapes, and more. All annotations are fully customizable for color, size, and style.
Yes! You can move, edit, or delete any annotation before downloading your PDF. Our editor gives you full control over your markups.
Absolutely. All files are encrypted during upload and processing, and are deleted from our servers after you download your annotated PDF. Your privacy and security are always protected.
MiniPDFeditor works on Windows, Mac, Linux, iOS, and Android. No installation or registration is required—just use your web browser to annotate PDFs anywhere, anytime.
You can annotate most standard PDF files for free. For very large files or advanced annotation features, a MiniPDFeditor Pro account may be required. We keep our limits generous for everyday users.
MiniPDFeditor offers a full suite of PDF tools—edit, merge, split, compress, sign, convert, and organize your documents all in one place. Explore our features to simplify your workflow.