How to password protect a pdf file ?
- Thread starter Deva393
- Start date
I only started my search for answer, but first thing I found is this - https://boostrobotics.eu/shop/blue-prism/utility-pdf/ (you have to buy it though). I hope there is better answer - if I find one I let you know 
Hi @Deva393 , @sandeep I have found solution, that works for me.
1. Download PDFSharp library (it is third party C# library - http://www.pdfsharp.net/ ). You can use this link - https://www.dllme.com/dll/files/pdfsharp_dll.html.
2. Copy the .dll file into this folder C:\Program Files\Blue Prism Limited\Blue Prism Automate\
3. Create object in BP. In Initialise action change Language (in Code Options) to C# and add External Reference "PdfSharp.dll". Also add Namespace Imports "PdfSharp.Pdf", "PdfSharp.Pdf.Security" and "PdfSharp.Pdf.IO". You can use PDFSharp for many things and Namespaces change accordingly.
4. Create Code Stage in Action where you put this code https://stackoverflow.com/questions/12383409/password-protecting-a-pdf-file. You need to change it for your purpose (for example input for the code stage needs to be 'filename' or password itself).
And that is it
Good luck!
1. Download PDFSharp library (it is third party C# library - http://www.pdfsharp.net/ ). You can use this link - https://www.dllme.com/dll/files/pdfsharp_dll.html.
2. Copy the .dll file into this folder C:\Program Files\Blue Prism Limited\Blue Prism Automate\
3. Create object in BP. In Initialise action change Language (in Code Options) to C# and add External Reference "PdfSharp.dll". Also add Namespace Imports "PdfSharp.Pdf", "PdfSharp.Pdf.Security" and "PdfSharp.Pdf.IO". You can use PDFSharp for many things and Namespaces change accordingly.
4. Create Code Stage in Action where you put this code https://stackoverflow.com/questions/12383409/password-protecting-a-pdf-file. You need to change it for your purpose (for example input for the code stage needs to be 'filename' or password itself).
And that is it
Good luck!