Hi,
I am trying to create transaparent rectangle into the existing pdf as below:
int alpha = 125;
int green = 255;
int red = 255;
int blue = 0;
Aspose.Pdf.Color alphaColor = Aspose.Pdf.Color.FromArgb(alpha, red, green, blue);
Aspose.Pdf.Document document = new Aspose.Pdf.Document(@“C:\files\pdf\1633407387.pdf”);
Aspose.Pdf.Page page = (Aspose.Pdf.Page)document.Pages[2];
page.PageInfo.Margin.Left = page.PageInfo.Margin.Right = page.PageInfo.Margin.Bottom = page.PageInfo.Margin.Top = 0;
int width = Convert.ToInt32(page.PageInfo.Width);
int height = Convert.ToInt32(page.PageInfo.Height);
Aspose.Pdf.Drawing.Graph graph = new Aspose.Pdf.Drawing.Graph(width, height);
var left = 272.96013f;//- 100.000f;
var bottom = 442.28571f;// +60.000f;
var hwidth = 316.16611f - 272.96013f;
var hheight = 452.45183f - 442.28571f;
//Aspose.Pdf.Drawing.Rectangle rect = new Aspose.Pdf.Drawing.Rectangle(0, 0, width, height);
Aspose.Pdf.Drawing.Rectangle rect = new Aspose.Pdf.Drawing.Rectangle(left, bottom, hwidth, hheight);
rect.GraphInfo.Color = (Aspose.Pdf.Color.Yellow);
rect.GraphInfo.LineWidth = 0.01f;
rect.GraphInfo.FillColor = (alphaColor);
//rect.GraphInfo.T
// Add rectangle object to shapes collection of Graph object
graph.Shapes.Add(rect);
page.Paragraphs.Add(graph);
document.Save(@“C:\files\pdf\1633407387-out.pdf”);
While excuting document.save method it is throwing null refernece error as below:[NullReferenceException: Object reference not set to an instance of an object.]
Aspose.Pdf.Drawing.Shape.(String , Page , Color , List1 ) +584 Aspose.Pdf.Drawing.Shape.(Page , Color , Color , List1 ) +91
Aspose.Pdf.Drawing.Shape.(List1 , Page ) +1292 Aspose.Pdf.Drawing.Graph.(Double& , Double& , Boolean , List1 , Page ) +1873
.() +2868
Aspose.Pdf.Page.(Page ) +1792
Aspose.Pdf.Page.() +50
Aspose.Pdf.Document.ProcessParagraphs() +766
Aspose.Pdf.Document.Save(Stream output) +110
Aspose.Pdf.Document.Save(String outputFileName) +100
_Default.savePdfusingAspose() in c:\Users\mindoriya\Documents\Visual Studio 2012\WebSites\WebSite2\Default.aspx.cs:87
_Default.Page_Load(Object sender, EventArgs e) in c:\Users\mindoriya\Documents\Visual Studio 2012\WebSites\WebSite2\Default.aspx.cs:16
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
System.Web.UI.Control.OnLoad(EventArgs e) +92
System.Web.UI.Control.LoadRecursive() +54
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772
Can someone please help on this?
Quick response will be really appreciated.
Thanks,
Manish
I tried debugging in it and found that due to alpha getting the error and only for some of the pdf files getting the error while excuting document.save method. when I am removing alpha parameter from the Aspose.Pdf.Color.FromArgb method and keeping it like Aspose.Pdf.Color.FromArgb(red,green,blue) then its executing fine but not getting the color transparency. Attaching the pdf file with it I am getting the error.
Hi Manish,
Can you please suggest any alternate immediate solution for this issue because this is affecting the release.
Hi Manish,
Hi Ahmad,
Any update on this issue?
Hi Manish,
Hi Ahmad,
Any update on this issue?
Hi Manish,
Any update on this issue?
Hi Manish,
Hi,
Any update on this as I’ve hit the same issue, only on certain PDFs and as the original poster mentions only if I add an alpha component to the FillColor.
Failing that any known workaround, this is using the latest 19.5 PDF lib
Given how long this issue has been outstanding I can’t believe there isn’t a fix or workaround for it yet?
Simon
We apologize that earlier logged issue could not get resolved due to other high priority issues and tasks in the queue. However, we have recorded your concerns and will definitely consider them during investigation of the issue. As soon as we make some significant progress towards issue resolution, we will share with you. Please spare us little time.
We are sorry for the inconvenience.
We regret to inform you that the earlier logged ticket is not yet resolved as it is under the phase of investigation at the moment. As soon as its investigation is completed and we have some news about its fix ETA, we will update you within this forum thread. We highly appreciate your patience and comprehension in this regard. Please give us some time.
We apologize for the inconvenience.
The issues you have found earlier (filed as PDFNET-41463) have been fixed in Aspose.PDF for .NET 21.6.