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Merged
rparthi-1687 merged 8 commits into from
Feb 24, 2025
Merged

923321: Added Redaction and LoadFile action #20

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a12380d
923321: Added Redaction action
Uma-SF4267 Feb 21, 2025
537a9c2
923321: Added redaction action in controller file
Uma-SF4267 Feb 24, 2025
b2e175e
923321: Checked and changed the redaction action .NET 8 redis
Uma-SF4267 Feb 24, 2025
4c52533
923321: Changed the controller changes in .NET 6 minimal API
Uma-SF4267 Feb 24, 2025
20004f3
923321: Checked and updated changes in redaction action in .NET 6
Uma-SF4267 Feb 24, 2025
8b200fd
923321: Checked and updated changes in redaction action in .NET 5
Uma-SF4267 Feb 24, 2025
8818612
923321: Added LoadFile Action in MVC controller
Uma-SF4267 Feb 24, 2025
27e17b0
923321: Added LoadFile Action in Core Controller file
Uma-SF4267 Feb 24, 2025
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173 changes: 173 additions & 0 deletions ASP.NET Core/PdfViewerWebService_5.0/Controllers/PdfViewerController.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,13 @@
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Drawing;
using Syncfusion.Pdf.Parsing;
using Syncfusion.Pdf;
using Syncfusion.Pdf.Graphics;
using Syncfusion.Pdf.Interactive;
using Syncfusion.Pdf.Redaction;
using System.Linq;

namespace PdfViewerService2.Controllers
{
Expand Down Expand Up @@ -318,6 +325,172 @@ public IActionResult ImportFormFields([FromBody] Dictionary<string, string> json
return Content(JsonConvert.SerializeObject(pageImage));
}

[HttpPost("Redaction")]
[Microsoft.AspNetCore.Cors.EnableCors("MyPolicy")]
[Route("[controller]/Redaction")]
public IActionResult Redaction([FromBody] Dictionary<string, string> jsonObject)
{
string RedactionText = "Redacted";
var finalbase64 = string.Empty;
if (jsonObject != null && jsonObject.ContainsKey("base64String"))
{
string base64 = jsonObject["base64String"];
string base64String = base64.Split(new string[] { "data:application/pdf;base64," }, StringSplitOptions.None)[1];
if (base64String != null || base64String != string.Empty)
{
byte[] byteArray = Convert.FromBase64String(base64String);
Console.WriteLine("redaction");
PdfLoadedDocument loadedDocument = new PdfLoadedDocument(byteArray);
foreach (PdfLoadedPage loadedPage in loadedDocument.Pages)
{
List<PdfLoadedAnnotation> removeItems = new List<PdfLoadedAnnotation>();
foreach (PdfLoadedAnnotation annotation in loadedPage.Annotations)
{
if (annotation is PdfLoadedRectangleAnnotation)
{
if (annotation.Author == "Redaction")
{
// Add the annotation to the removeItems list
removeItems.Add(annotation);
// Create a new redaction with the annotation bounds and color
PdfRedaction redaction = new PdfRedaction(annotation.Bounds, annotation.Color);
// Add the redaction to the page
loadedPage.AddRedaction(redaction);
annotation.Flatten = true;
}
if (annotation.Author == "Text")
{
// Add the annotation to the removeItems list
removeItems.Add(annotation);
// Create a new redaction with the annotation bounds and color
PdfRedaction redaction = new PdfRedaction(annotation.Bounds);
//Set the font family and font size
PdfStandardFont font = new PdfStandardFont(PdfFontFamily.Courier, 8);
//Create the appearance like repeated text in the redaction area
CreateRedactionAppearance(redaction.Appearance.Graphics, PdfTextAlignment.Left, true, new SizeF(annotation.Bounds.Width, annotation.Bounds.Height), RedactionText, font, PdfBrushes.Red);
// Add the redaction to the page
loadedPage.AddRedaction(redaction);
annotation.Flatten = true;
}
//Apply the pattern for the Redaction
if (annotation.Author == "Pattern")
{
// Add the annotation to the removeItems list
removeItems.Add(annotation);
// Create a new redaction with the annotation bounds and color
PdfRedaction redaction = new PdfRedaction(annotation.Bounds);
Syncfusion.Drawing.RectangleF rect = new Syncfusion.Drawing.RectangleF(0, 0, 8, 8);
PdfTilingBrush tillingBrush = new PdfTilingBrush(rect);
tillingBrush.Graphics.DrawRectangle(PdfBrushes.Gray, new Syncfusion.Drawing.RectangleF(0, 0, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.White, new Syncfusion.Drawing.RectangleF(2, 0, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.LightGray, new Syncfusion.Drawing.RectangleF(4, 0, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.DarkGray, new Syncfusion.Drawing.RectangleF(6, 0, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.White, new Syncfusion.Drawing.RectangleF(0, 2, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.LightGray, new Syncfusion.Drawing.RectangleF(2, 2, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.Black, new Syncfusion.Drawing.RectangleF(4, 2, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.LightGray, new Syncfusion.Drawing.RectangleF(6, 2, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.LightGray, new Syncfusion.Drawing.RectangleF(0, 4, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.DarkGray, new Syncfusion.Drawing.RectangleF(2, 4, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.LightGray, new Syncfusion.Drawing.RectangleF(4, 4, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.White, new Syncfusion.Drawing.RectangleF(6, 4, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.Black, new Syncfusion.Drawing.RectangleF(0, 6, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.LightGray, new Syncfusion.Drawing.RectangleF(2, 6, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.Black, new Syncfusion.Drawing.RectangleF(4, 6, 2, 2));
tillingBrush.Graphics.DrawRectangle(PdfBrushes.DarkGray, new Syncfusion.Drawing.RectangleF(6, 6, 2, 2));
rect = new Syncfusion.Drawing.RectangleF(0, 0, 16, 14);
PdfTilingBrush tillingBrushNew = new PdfTilingBrush(rect);
tillingBrushNew.Graphics.DrawRectangle(tillingBrush, rect);
//Set the pattern for the redaction area
redaction.Appearance.Graphics.DrawRectangle(tillingBrushNew, new Syncfusion.Drawing.RectangleF(0, 0, annotation.Bounds.Width, annotation.Bounds.Height));
// Add the redaction to the page
loadedPage.AddRedaction(redaction);
annotation.Flatten = true;
}
}
else if (annotation is PdfLoadedRubberStampAnnotation)
{
if (annotation.Author == "Image")
{
Stream[] images = PdfLoadedRubberStampAnnotationExtension.GetImages(annotation as PdfLoadedRubberStampAnnotation);
// Create a new redaction with the annotation bounds and color
PdfRedaction redaction = new PdfRedaction(annotation.Bounds);
images[0].Position = 0;
PdfImage image = new PdfBitmap(images[0]);
//Apply the image to redaction area
redaction.Appearance.Graphics.DrawImage(image, new Syncfusion.Drawing.RectangleF(0, 0, annotation.Bounds.Width, annotation.Bounds.Height));
// Add the redaction to the page
loadedPage.AddRedaction(redaction);
annotation.Flatten = true;
}
}
}
foreach (PdfLoadedAnnotation annotation1 in removeItems)
{
loadedPage.Annotations.Remove(annotation1);
}
}
loadedDocument.Redact();
MemoryStream stream = new MemoryStream();
loadedDocument.Save(stream);
stream.Position = 0;
loadedDocument.Close(true);
byteArray = stream.ToArray();
finalbase64 = "data:application/pdf;base64," + Convert.ToBase64String(byteArray);
stream.Dispose();
return Content(finalbase64);
}
}

return Content("data:application/pdf;base64," + "");
}

//The Method used for apply the text in the full area of redaction rectangle
private static void CreateRedactionAppearance(PdfGraphics graphics, PdfTextAlignment alignment, bool repeat, SizeF size, string overlayText, PdfFont font, PdfBrush textcolor)
{
float col = 0, row;
if (font == null) font = new PdfStandardFont(PdfFontFamily.Helvetica, 10);
int textAlignment = Convert.ToInt32(alignment);
float y = 0, x = 0, diff = 0;
Syncfusion.Drawing.RectangleF rect;
Syncfusion.Drawing.SizeF textsize = font.MeasureString(overlayText);

if (repeat)
{
col = size.Width / textsize.Width;
row = (float)Math.Floor(size.Height / font.Size);
diff = Math.Abs(size.Width - (float)(Math.Floor(col) * textsize.Width));
if (textAlignment == 1)
x = diff / 2;
if (textAlignment == 2)
x = diff;
for (int i = 1; i < col; i++)
{
for (int j = 0; j < row; j++)
{
rect = new Syncfusion.Drawing.RectangleF(x, y, 0, 0);
graphics.DrawString(overlayText, font, textcolor, rect);
y = y + font.Size;
}
x = x + textsize.Width;
y = 0;
}
}
else
{
diff = Math.Abs(size.Width - textsize.Width);
if (textAlignment == 1)
{
x = diff / 2;
}
if (textAlignment == 2)
{
x = diff;
}
rect = new Syncfusion.Drawing.RectangleF(x, 0, 0, 0);
graphics.DrawString(overlayText, font, textcolor, rect);
}
}

//Gets the path of the PDF document
private string GetDocumentPath(string document)
{
Expand Down
6 changes: 5 additions & 1 deletion ASP.NET Core/PdfViewerWebService_5.0/PdfViewerWebService_5.0.csproj
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Expand Up @@ -8,7 +8,11 @@

<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="3.1.0" />
<PackageReference Include="Syncfusion.EJ2.PdfViewer.AspNet.Core" Version="*" />
<PackageReference Include="Syncfusion.Compression.Net.Core" Version="*" />
<PackageReference Include="Syncfusion.EJ2.AspNet.Core" Version="*" />
<PackageReference Include="Syncfusion.EJ2.PdfViewer.AspNet.Core" Version="*" />
<PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
<PackageReference Include="Syncfusion.Pdf.Imaging.Net.Core" Version="*" />
</ItemGroup>

</Project>
6 changes: 5 additions & 1 deletion ASP.NET Core/PdfViewerWebService_6.0 - Minimal API/PdfViewerWebService_6.0.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,11 @@

<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="3.1.0" />
<PackageReference Include="Syncfusion.EJ2.PdfViewer.AspNet.Core" Version="*" />
<PackageReference Include="Syncfusion.Compression.Net.Core" Version="*" />
<PackageReference Include="Syncfusion.EJ2.AspNet.Core" Version="*" />
<PackageReference Include="Syncfusion.EJ2.PdfViewer.AspNet.Core" Version="*" />
<PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
<PackageReference Include="Syncfusion.Pdf.Imaging.Net.Core" Version="*" />
</ItemGroup>

</Project>
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