Annotations / Comments
PDF Studio allows you to comment or annotate a document with text, graphics, sound and hyperlinks.
Create a new annotation
Update an existing annotation
Move an annotation or change its bounds
Export comments
Import comments
Following are all the types of annotations supported by PDF Studio:
| Circle Annotation | |
| Line Annotation | |
| Square Annotation | |
| Pencil Annotation |
| Sound Annotation |
| Hyperlink |
| Highlight |
1) from the annotations toolbar, simply click on the appropriate annotation tool then place the mouse on the desired location on the page and draw the annotation by dragging the mouse on the screen.
2) from the top toolbar, choose comments > add comment, click on the appropriate annotation then place the mouse on the desired location on the page and draw the annotation by dragging the mouse on the screen.
After placing the annotation on the page, the application will display a dialog to modify the annotation properties, such as line width, audio file, color and other options according to the annotation type. See Circle, Free Text, Highlight, Line, Pencil, Square, Sound, Sticky Note.
To edit an annotation in order to change its properties such as line width or color, right click (Mac: Ctrl + left click) on the annotation and choose Properties in the mouse menu. The application will display the properties dialog for this type of annotation. Each type of annotations has its own list of options. See Circle, Free Text, Highlight, Line, Pencil, Square, Sound, Sticky Note.
PDF Studio will let you edit an existing annotation whether this annotation was added in PDF Studio or in another software such as Adobe Acrobat.
To move an annotation, simply click on the annotation and move it to its new location on the page.
In the same way, to change the shape of an annotation, simply drag the mouse to change the bounds of the annotations to the new desired bounds.
Free Text Annotation Properties:
- Border Width
- Border Color
- Background Color
- Text Color
- Text Horizontal Alignment (left, center, right)
- Text Vertical Alignment (top, center, bottom)
- Text Size, Bold, Italic
- Text Content
Sticky Note Annotation
To create a sticky note annotation, follow the standard steps to create a new annotation. The application will then display the Sticky Note Properties dialog where you can choose the options for your new annotation.Sticky Note Properties:
- Sticky Note Icon Color
- Transparency percentage (100% transparent is invisible, 0% is completely opaque)
- 'Open Initially' Flag indicates whether the sticky note should be showing when the document is first open.
- Annotation Note or Comment (optional)
- Line Width
- Transparency percentage (100% transparent is invisible, 0% is completely opaque)
- Color of the circle border
- Color of the inside of the circle
- Annotation note or comment (optional)
Line Annotation
To create a line annotation, follow the standard steps to create a new annotation. The application will then display the Line Annotation Properties dialog where you can choose the options for your new annotation.
Line Annotation Properties:
- Line Width
- Transparency percentage (100% transparent is invisible, 0% is completely opaque)
- Color of the line
- Line Start Icon
- Line End Icon
- Annotation Content
Square Annotation
To create a square annotation, follow the standard steps to create a new annotation. The application will then display the Square Annotation Properties dialog where you can choose the options for your new annotation.
Square Annotation Properties:
- Line Width
- Transparency percentage (100% transparent is invisible, 0% is completely opaque)
- Color of the border of the square
- Color of the inside of the square
- Annotation Content
Pencil Annotation
To create a square annotation, follow the standard steps to create a new annotation. The application will then display the Square Annotation Properties dialog where you can choose the options for your new annotation.
Pencil Annotation Properties:
- Line Width
- Transparency percentage (100% transparent is invisible, 0% is completely opaque)
- Color of the pencil
- Annotation Content

Highlight
A highlight annotation is simply a square annotation with a transparent background and no border (line width = 0).
There are two ways to create a new highlight annotation:
1) from the annotations toolbar, simply click on the highlight tool then place the mouse on the desired location on the page and draw the annotation by dragging the mouse on the screen.
2) from the top toolbar, choose comments > add Note -> Highlight then place the mouse on the desired location on the page and draw the Highlight area by dragging the mouse on the screen.
Highlight Properties are the same as the Square Properties.
Exporting Comments
PDF Studio allows to export comments from the current document into a file in FDF or XFDF format. Comments from Text Annotations, Graphics Annotations and Sound Annotations will be exported. Hyperlinks are not considered comments in PDF format and thus are not exported.
To export comments: