How to Annotate a PDF Free on Windows (No Adobe)
Add highlights, notes, and comments to PDFs on Windows without Adobe Acrobat. Use a free browser-based tool.
Windows 10 and 11 include a basic PDF viewer (Edge) with limited annotation. For full annotation without Adobe, FixMyPDF's annotator works in any browser.
Microsoft Edge Built-In Annotation
Edge's PDF viewer (built into Windows 10/11) supports: highlighting text, drawing freehand, adding text. Annotations are saved when you save the file in Edge. This is a quick option for simple annotations without any additional tools.
FixMyPDF for More Annotation Control
For more control over annotation style, colour, and type — or for annotating without saving Edge's version — use FixMyPDF's annotator in Chrome, Edge, or Firefox.
Steps in FixMyPDF
Go to fixmypdf.in/tools/add-comments. Upload your PDF. Add highlights, comments, drawings, or shapes. Download the annotated PDF.
Making Annotations Permanent
Flatten annotations using the flatten tool if you want them permanently embedded and non-editable.
Try Annotate PDF Now — Free
Browser-based, private, and instant. No account or software required.
Open Annotate PDF