C# - Convert a PDF File to Base64String

C# Convert a PDF File to Base64String

1. Create a Windows Forms Project

2. Name it “ConvertFileToBase64”

3. Open Form1.cs and add a Label, two textboxes and a button

4. Double click on the button and add the following code:

string userPath; userPath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile) + "\\Desktop";         OpenFileDialog ofd = new OpenFileDialog();         ofd.InitialDirectory = userPath;         ofd.Filter = "html files (*.html)|*.txt|All files (*.*)|*.*";         ofd.FilterIndex = 2;         ofd.RestoreDirectory = true;         ofd.ShowDialog();         string fName = ofd.FileName;         textBox1.Text = fName;            var doc = File.ReadAllBytes(textBox1.Text);         textBox2.Text = Convert.ToBase64String(doc);         Clipboard.SetText(textBox2.Text);

5. Run the project

6. Click on the “Select File” button and pick a file of your choice

7. The result

8. The following part of code will copy the text to the clipboard in order to save you some time