public static void RedactByRegion_()
{
string strPath;
strPath = System.AppDomain.CurrentDomain.BaseDirectory + "\\";
using (APRedactor.Redactor redact = new APRedactor.Redactor(strPath + "InputFiles\\5pageLoremIpsum.pdf", null))
{
redact.TextMode = APRedactor.Redactor.TextRedactionMode.Region;
redact.ImageMode = APRedactor.Redactor.ImageRedactionMode.Region;
for (int pageNumber = 1; pageNumber <= redact.PageTotal; pageNumber++)
{
redact.FirstPage = pageNumber;
redact.LastPage = pageNumber;
float pageWidth, pageHeight;
redact.GetPageSize(pageNumber, out pageWidth, out pageHeight);
APRedactor.RedactRegion[] regions = new APRedactor.RedactRegion[]
{
new APRedactor.RedactRegion(pageNumber,
new APRedactor.Rectangle(pageWidth / 3, pageHeight / 3, pageWidth / 3, pageHeight / 3,
APRedactor.Rectangle.CoordinateFrame.TopDown))
};
redact.TextRegions = regions;
redact.ImageRegions = regions;
int redactionsPerformed = redact.Redact();
}
redact.Save(strPath + "OutPutFiles\\5pageLoremIpsumOutPutRedacted.pdf");
}
}
/*
* Shows an example of redacting individual pixels from an image
* contained on a page. This is useful for a number of applications,
* including: removing some copyrighted logo from an image, removing
* some faces from a photo, removing text stored as an image because
* the document was scanned, or anything else. The color that the
* pixels are replaced with is set by the ReplacementColor property.
*/
public static void Example()
{
using (APRedactor.Redactor redact = new APRedactor.Redactor(
filename: @"..\..\..\Input\Redactor.Input.pdf"))
{
// Getting the coordinates for what to redact is left to you,
// as they vary from document to document. Remember that you
// can call Redactor.GetPageSize() to get the size of each page
// as a starting point. You can combine Redactor with tools
// like ActivePDF Rasterizer to get images to display, allowing
// the user to draw boxes that you can convert to coordinates.
// Or you can use ActivePDF Extractor to find the coordinates
// of specific content. Or, if you are redacting many documents
// with the same layout, you can figure out the coordinates
//once and apply them to all inputs.
// This creates an array of regions that will find two
// rectangles on page 1, one on page 2, and one on page 3.
// Since the ImageMode is set to Subregion, it only applies to
// individual pixels found in those rectangles. You can use the
// same regions for Text by setting the TextMode to Region and
// assigning to the TextRegions property, if you desire.
APRedactor.RedactRegion[] regions = new APRedactor.RedactRegion[]
{
new APRedactor.RedactRegion(
pageNumber: 1,
region: new APRedactor.Rectangle(x: 284.5125f,
y: 122.2324f,
w: 202.5f,
h: 118.4625f))
};
// Don't forget to update the file given to the Constructor and
// the Save function! Be sure to set the text or image mode or
// the test will do nothing! These apply only to images stored
// within the PDF, and will not affect any text or graphics.
redact.TextMode = APRedactor.Redactor.TextRedactionMode.None;
redact.ImageMode =
APRedactor.Redactor.ImageRedactionMode.Subregion;
redact.ImageRegions = regions;
int redactionsPerformed = redact.Redact();
redact.Save(filename: @"..\..\..\Output\RedactIndividualPixels.pdf");
Console.WriteLine("Redacted page saved to RedactIndividualPixels.pdf");
}
}
/*
* Redacts both text and images that are contained the middle third of
* each page. Because each page of a document can be a different size,
* it is necessary to fetch the size of a page, and perform the
* redaction operation, one page at a time.
*/
public static void Example()
{
using (APRedactor.Redactor redact = new APRedactor.Redactor(
filename: @"..\..\..\Input\Redactor.Input.pdf"))
{
redact.TextMode = APRedactor.Redactor.TextRedactionMode.Region;
redact.ImageMode =
APRedactor.Redactor.ImageRedactionMode.Region;
for (int pageNumber = 1;
pageNumber <= redact.PageTotal;
pageNumber++)
{
redact.FirstPage = redact.LastPage = pageNumber;
float pageWidth, pageHeight;
redact.GetPageSize(
pageNumber: pageNumber,
width: out pageWidth,
height: out pageHeight);
APRedactor.RedactRegion[] regions =
new APRedactor.RedactRegion[]
{
new APRedactor.RedactRegion(pageNumber: pageNumber,
region: new APRedactor.Rectangle(
x: pageWidth / 3,
y: pageHeight / 3,
w: pageWidth / 3,
h: pageHeight / 3))
};
redact.TextRegions = regions;
redact.ImageRegions = regions;
int redactionsPerformed = redact.Redact();
Console.WriteLine($"{redactionsPerformed} on Page {pageNumber}");
}
redact.Save(@"..\..\..\Output\RedactByRegion.pdf");
Console.WriteLine("Redacted page saved to RedactByRegion.pdf");
}
}
