PDF Highlights Annotation using Python

Text Markup Annotations in PDF are used to highlight, underline, skip, or add notes to text in the document. These annotations are intended to highlight or draw attention to specific parts of the text. Such annotations allow users to visually mark or modify the content of a PDF file.

Highlight annotation is used to mark the text with a color background, usually yellow, to indicate its importance or relevance.

Underline annotation is a line placed beneath selected text to indicate significance, emphasis, or indicate suggested edits.

Strikethrough annotation includes strikeout or strikethrough of a particular text to show that it has been deleted, replaced, or is no longer valid.

Squiggly line is used to underline the text to indicate a different type of accent, such as spelling errors, potential problems, or proposed changes.

Add Text Markup Annotation

In order to add an Text Markup Annotation to the PDF document, we need to perform the following actions:

1. Load the PDF file - new Document object.
2. Create annotations:
   • HighlightAnnotation and set parameters (title, color).
   • StrikeOutAnnotation and set parameters (title, color).
   • SquigglyAnnotation and set parameters (title, color).
   • UnderlineAnnotation and set parameters (title, color).
3. After we should add all annotations to the page.

Add Highlight Annotation

    import aspose.pdf as ap

    # Open document
    document = ap.Document(input_file)

    # Create Circle Annotation
    highlightAnnotation = ap.annotations.HighlightAnnotation(
        document.pages[1], ap.Rectangle(300, 750, 320, 770, True)
    )
    document.pages[1].annotations.append(highlightAnnotation)
    document.save(output_file)

Add StrikeOut Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)

    strikeoutAnnotation = ap.annotations.StrikeOutAnnotation(
        document.pages[1], ap.Rectangle(299.988, 713.664, 308.708, 720.769, True)
    )
    strikeoutAnnotation.title = "Aspose User"
    strikeoutAnnotation.subject = "Inserted text 1"
    strikeoutAnnotation.flags = ap.annotations.AnnotationFlags.PRINT
    strikeoutAnnotation.color = ap.Color.blue

    document.pages[1].annotations.append(strikeoutAnnotation)
    document.save(output_file)

Add Squiggly Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    page = document.pages[1]
    squigglyAnnotation = ap.annotations.SquigglyAnnotation(page, ap.Rectangle(67, 317, 261, 459, True))
    squigglyAnnotation.title = "John Smith"
    squigglyAnnotation.color = ap.Color.blue

    page.annotations.append(squigglyAnnotation)

    document.save(output_file)

Add Underline Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)

    underlineAnnotation = ap.annotations.UnderlineAnnotation(
        document.pages[1], ap.Rectangle(299.988, 713.664, 308.708, 720.769, True)
    )
    underlineAnnotation.title = "Aspose User"
    underlineAnnotation.subject = "Inserted Underline 1"
    underlineAnnotation.flags = ap.annotations.AnnotationFlags.PRINT
    underlineAnnotation.color = ap.Color.blue

    document.pages[1].annotations.append(underlineAnnotation)
    document.save(output_file)

Get Text Markup Annotation

Please try using the following code snippet to Get Text Markup Annotation from PDF document.

Get Highlight Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    highlightAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.HIGHLIGHT)
    ]

    for ha in highlightAnnotations:
        print(ha.rect)

Get StrikeOut Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    StrikeoutAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.STRIKE_OUT)
    ]

    for pa in StrikeoutAnnotations:
        print(pa.rect)

Get Squiggly Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    squigglyAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.SQUIGGLY)
    ]

    for pa in squigglyAnnotations:
        print(pa.rect)

Get Underline Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    UnderlineAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.UNDERLINE)
    ]

    for ta in UnderlineAnnotations:
        print(ta.rect)

Delete Text Markup Annotation

The following code snippet shows how to Delete Text Markup Annotation from PDF file.

Delete Highlight Annotation

    import aspose.pdf as ap

    # Load the PDF file
    document = ap.Document(input_file)
    highlightAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.HIGHLIGHT)
    ]

    for hs in highlightAnnotations:
        document.pages[1].annotations.delete(hs)

    document.save(output_file)

Delete Strikeout Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    StrikeoutAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.STRIKE_OUT)
    ]

    for pa in StrikeoutAnnotations:
        document.pages[1].annotations.delete(pa)

    document.save(output_file)

Delete Squiggly Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    squigglyAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.SQUIGGLY)
    ]

    for pa in squigglyAnnotations:
        document.pages[1].annotations.delete(pa)

    document.save(output_file)

Delete Underline Annotation

    import aspose.pdf as ap

    document = ap.Document(input_file)
    underlineAnnotations = [
        a
        for a in document.pages[1].annotations
        if (a.annotation_type == ap.annotations.AnnotationType.UNDERLINE)
    ]

    for ta in underlineAnnotations:
        document.pages[1].annotations.delete(ta)

    document.save(output_file)