PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for the digital preservation of electronic documents. It is widely used for long term archiving for PDF format. This article mainly shows how to convert word document (doc and docx) to PDF/A in C# by using Spire.Doc.

Make sure Spire.Doc for .NET Version 5.0.26 (or above) has been installed correctly and then add Spire.Doc.dll as reference in the downloaded Bin folder though the below path: "..\Spire.Doc\Bin\NET4.0\ Spire.Doc.dll".

First, check the original word document that will be converted to PDF/A.

Here comes to the details of how developers convert word document to PDF/A directly by using Spire.Doc:

Step 1: Load a word document from the file.

Document document = new Document();
document.LoadFromFile(@"D:\test.docx",FileFormat.Docx);

Step 2: Sets the Pdf document's Conformance-level to PDF_A1B.

ToPdfParameterList toPdf = new ToPdfParameterList();
toPdf.PdfConformanceLevel = Spire.Pdf.PdfConformanceLevel.Pdf_A1B;

Step 3: Save word document to PDF

document.SaveToFile("result.Pdf",toPdf);

Please check the effective screenshot of the result PDF in PDF/A format.

When dealing with Word documents, sometimes developers need to merge multiple files into a single file. Spire.Doc, especially designed for developers enables you to manipulate doc files easily and flexibly.

There is already a document introducing how to merge doc files. Check it here:

.NET Merge Word - Merge Multiple Word Documents into One in C# and VB.NET

Using the method above, you have to copy sections one by one. But the new method just concatenates them. It has improved and is very easy to use

Step 1: Load the original word file "A Good Man.docx".

document.LoadFromFile("A Good Man.docx", FileFormat.Docx);

Step 2: Merge another word file "Original Word.docx" to the original one.

document.InsertTextFromFile("Original Word.docx", FileFormat.Docx);

Step 3: Save the file.

document.SaveToFile("MergedFile.docx", FileFormat.Docx);

Full code and screenshot:

static void Main(string[] args)
{
    Document document = new Document();
    document.LoadFromFile("A Good Man.docx", FileFormat.Docx);

    document.InsertTextFromFile("Original Word.docx", FileFormat.Docx);

    document.SaveToFile("MergedFile.docx", FileFormat.Docx);
    System.Diagnostics.Process.Start("MergedFile.docx");
}

Full code and screenshot:

using Spire.Doc;
namespace MergeWord
{
    class Program
    {
        static void Main(string[] args)
        {
            Document document = new Document();
            document.LoadFromFile("A Good Man.docx", FileFormat.Docx);

            document.InsertTextFromFile("Original Word.docx", FileFormat.Docx);

            document.SaveToFile("MergedFile.docx", FileFormat.Docx);
            System.Diagnostics.Process.Start("MergedFile.docx");
        }
    }
}

Word Marco is widely used to record the operation that needs to be done repeatedly and you can apply it with only a single click. It can save lots of time for you. It is not an easy work to load a word document with Macro in C# and sometimes, you need to remove the Marco in the word documents in C#. This article will focus on demonstrate how to load and save word document with Marco, and clear the Marco by using Spire.Doc in C# in simple lines of codes.

First, download Spire.Doc and install on your system. The Spire.Doc installation is clean, professional and wrapped up in a MSI installer.

Then adds Spire.Doc.dll as reference in the downloaded Bin folder though the below path: "..\Spire.Doc\Bin\NET4.0\ Spire.Doc.dll".

Here comes to the steps.

Step 1: Load and save the document with Marco. Spire.Doc for .NET supports .doc, .docx(Word 97-2003) document with macros and .docm(Word 2007 and Word 2010) document.

//Loading document with macros.
document.LoadFromFile(@"D:\Macros.docm", FileFormat.Docm);
//Save docm file.
document.SaveToFile("Sample.docm", FileFormat.Docm);

Step 2: Clear the Marco in word document. With Spire.Doc, you only need one line of code to remove all the Marcos at one time.

//Removes the macros from the document
document.ClearMacros();
//Save docm file.
document.SaveToFile("Sample.docm", FileFormat.Docm);

Here comes to the screenshot which has removed the Marco in word document.

Image can add interest and take effect to your Word documents. Suppose you've written an article introducing a city about its beautiful scenery. Just using words describe, you cannot present perfect scenery to your readers, because that page of text looks indistinct and dull. You need image to embellish your scenery.

Spire.Doc for .NET, a professional .NET word component to fast generate, open, modify and save Word documents without using MS Office Automation, enables users to insert image into Word document and set its size according to page by using C#.NET. This guide introduces an easy method how to insert image via Spire.Doc for .NET.

At first, create new Word document and add section, paragraph for this document. Then, insert image in the new created paragraph. You can set this image's size, position, rotate it and choice the wrapping-style about the text. Download and Install Spire.Doc for .NET. Use the following code to insert image in Word by using C#.

The sample demo shows how to insert an image into a document.

using System;
using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System.Drawing;

namespace Insert_image_to_Word_Document
{
    class Program
    {
        static void Main(string[] args)
        {
 //Open a blank word document as template
            Document document = new Document(@"Blank.doc");
            Section section = document.Sections[0];
            Paragraph paragraph
                = section.Paragraphs.Count > 0 ? section.Paragraphs[0] : section.AddParagraph();
            paragraph.AppendText("The sample demonstrates how to insert an image into a document.");
            paragraph.ApplyStyle(BuiltinStyle.Heading2);
            paragraph = section.AddParagraph();
  
            //get original image 
            Bitmap p = new Bitmap(Image.FromFile(@"Word.jpg")); 
           
            //rotate image and insert image to word document
            p.RotateFlip(RotateFlipType.Rotate90FlipX);

            DocPicture picture = document.Sections[0].Paragraphs[0].AppendPicture(p);
   
            //set image's position
            picture.HorizontalPosition = 50.0F;
            picture.VerticalPosition = 60.0F;

            //set image's size
            picture.Width = 200;
            picture.Height = 200;

            //set textWrappingStyle with image;
            picture.TextWrappingStyle = TextWrappingStyle.Through;

            //Save doc file.
            document.SaveToFile("Sample.doc", FileFormat.Doc);

            //Launching the MS Word file.            System.Diagnostics.Process.Start("Sample.doc");
        }
       }
}

If you have finished the tutorial Spire.Doc Quick Start, the steps above will be simpler.

With Spire.Doc, you can insert an image into your Word documents and do more same thing in your ASP.NET, WPF and Silverlight applications without Word automation and any other third party add-ins.