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    11. Create PDF with Image Redaction

    Create PDF with Image Redaction

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    In some cases you might need to redact the pages of a document as images, redacting entire areas of the page instead or in addition to a specific text. With GroupDocs.Redaction you can use the following approach:

    • open the document and apply all required redactions to the document’s body (text, annotations, etc.);
    • save it as a rasterized PDF file (containing images of the original document’s pages);
    • apply ImageAreaRedaction to remove specific areas on the pages within the PDF document.

    The following example demonstrates how to create a rasterized PDF from a Microsoft Word document and apply image redactions to its pages:

    from io import BytesIO

from groupdocs.redaction import Redactor, RedactionStatus
from groupdocs.redaction.options import RasterizationOptions
from groupdocs.redaction.redactions import ImageAreaRedaction, RegionReplacementOptions
from groupdocs.pydrawing import Point, Size, Color


def create_pdf_with_image_redaction():
    # Create an in-memory binary stream
    stream = BytesIO()

    # Load the document and rasterize it to a PDF in the stream
    with Redactor("./sample.docx") as redactor:

        # Save the rasterized document to the stream
        ro = RasterizationOptions()
        ro.enabled = True
        redactor.save(stream, ro)
        stream.seek(0)

    # Define the position on the image
    sample_point = Point(40, 160)
    # Define the size of the area which needs to be redacted
    sample_size = Size(350, 75)
    # Define the color of redaction
    color = Color.from_argb(255, 220, 20, 60)

    # Specify the redaction options
    repl_opt = RegionReplacementOptions(color, sample_size)
    img_red = ImageAreaRedaction(sample_point, repl_opt)

    # Load the stream to be redacted
    with Redactor(stream) as redactor:

        # Apply the redaction
        result = redactor.apply(img_red)

        # Re-open the rasterized PDF document to redact its pages as images
        if result.status != RedactionStatus.FAILED:
            # Save the document to a file and convert its pages to images
            ro = RasterizationOptions()
            ro.enabled = True
            with open("./redacted-sample.pdf", "wb") as stream_out:
                redactor.save(stream_out, ro)
            print("Document redacted successfully.\nCheck output in ./redacted-sample.pdf")
        else:
            print("Redaction failed!")


if __name__ == "__main__":
    create_pdf_with_image_redaction()

    sample.docx is the sample file used in this example. Click here to download it.

    Binary file (PDF, 879 KB)

    Download full output

    Please, note that you don’t have to use GroupDocs.Redaction to create a rasterized PDF from an office document. You will be able to use it, if you don’t have any other tool for that.

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