Introduction
Spire.PDF from E-iceblue is a .NET component that lets you manipulate PDF documents programmatically. Spire.PDF for .NET is a professional .NET library specially designed for developers to create, read, write, convert and print PDF document files from any .NET platform with fast and high-quality performance.
Background
I got an opportunity from a China based company E-iceblue, to review one of their products. I selected Spire.PDF from E-iceblue, which is a .NET component that lets you manipulate PDF documents programmatically.
Namespace
  1. using Spire.Pdf;
  2. using Spire.Doc.Documents;

Add Reference

  • Add the following reference
  • Add the Spire.Pdf, Spire.Doc and Spire.License DLL files to the bin folder
  • Spire.Pdf contains the PDF conversion libraries.
  • Spire.Doc contains the doc conversion libraries.

Figure 1: Add Reference
Code


Figure 2: Code
Creating the instance of PdfDocument:
PdfDocument document_doc = new PdfDocument();
Load the file location, in this code “spire.pdf” is a PDF file as in the following:
document_doc.LoadFromFile(@"E:\MVC APP\SpireDoc\SpireDoc\spire.pdf");
Convert the PDF file into Document format using “FileFormat.Doc” as in the following:
document_doc.SaveToFile("Spire.doc", FileFormat.DOC);
Launch the conversion process as in the following:
System.Diagnostics.Process.Start("Spire.doc");
Examples
The following converts a PDF to Xps:
  1. //Creating instance of PdfDocument

  3. PdfDocument document = new PdfDocument();
  5. //Loading the File path of pdf file
  7. document.LoadFromFile(@"E:\MVC APP\SpireDoc\SpireDoc\SpireXps.pdf");
  9. //Save Spire.Pdf.PdfDocument object as XPS format.
  11. document.SaveToFile("SpireXps.xps", FileFormat.XPS);
  13. //Launch XPS
  15. System.Diagnostics.Process.Start("SpireXps.xps");
Output

Figure 3: Output 1
The following converts a PDF to Doc:
  1. //Creating instance of PdfDocument
  3. PdfDocument document_doc = new PdfDocument();
  5. //Loading the File path of pdf file
  7. document_doc.LoadFromFile(@"E:\MVC APP\SpireDoc\SpireDoc\spire.pdf");
  9. //Save Spire.Pdf.PdfDocument object as DOC format.
  11. document_doc.SaveToFile("Spire.doc", FileFormat.DOC);
  13. //Launch Document
  15. System.Diagnostics.Process.Start("Spire.doc");
Output

Figure 4: Output2
Important points
  • Merge/split PDF documents.
  • Set PDF position, title display, resize, page mode and print scaling, and so on.
  • Protect PDF documents by setting passwords and digital signature.
  • Overlay documents.
  • Decrypt PDF Document.
  • Fast Conversion Process.
Reference
Here is the article from my tech blog: