Hi Steiner,
Sorry for the delay in responding.
The problem here is that Essential PDF holds reference to the image till the PDF document is saved to disk but fails to dispose it after that. You could avoid this problem by manually disposing the image after saving the PDF document.
[C#]
//Create a new PDF Document. The pdfDoc object represents the PDF document.
//This document has one page by default and additional pages have to be added.
PDFDocument pdfDoc = new PDFDocument();
//Adding a font that can be used to draw Text inside the PDF document.
//Using the Predefined fonts to draw the text.
IPDFFont pdfFont = pdfDoc.Fonts.Add( FontBaseFamily.Courier );
//Access the first page in the PDFDocuments''s pages collection
IPDFPage firstPage = pdfDoc.Pages[0];
Bitmap bmp = new Bitmap("sunset.bmp");
firstPage.Graphics.DrawImage(new PointF(0,0),bmp);
//Save the PDF Document to disk
pdfDoc.Save("Sample.pdf",Response,HttpReadType.Open);
bmp.Dispose();
And also, please refer the below document to get more details regarding this issue.
http://support.microsoft.com/?id=814675Please try this and let me know if the problem still exists.
Thanks,
Melba