How to Select a Specific Printer Using Acrobat CAcroPDDoc API in C#
Question details
The user needs to specify a target printer and destination for silent PDF printing in a C# application using Acrobat APIs.
- Product
- Adobe Acrobat API
- Device & OS
- not provided
- Scenario
- Automating silent PDF printing where the application needs to target a specific printer, despite the system's default printer changing frequently.
- Observed behavior
- The PrintPagesSilent method does not accept a printer parameter and forces the print job to the system's current default printer.
Ensure your C# application runs with the necessary permissions to read and modify the Windows system's default printer settings dynamically.
Temporarily Change the Windows Default Printer Before Printing
Since PrintPagesSilent does not accept a printer name, dynamically change the Windows default printer in C# before invoking the print command.
The Acrobat Interop APIs were not originally designed for seamless multi-printer automation. The PrintPagesSilent method strictly routes documents to whatever printer is currently set as the Windows default.
Use the System.Drawing.Printing.PrinterSettings class or WMI in your C# code to capture the string name of the current default printer so it can be restored later.
Programmatically update the Windows default printer to your desired target printer using an external API call like SetDefaultPrinter from winspool.drv.
Invoke the PrintPagesSilent method via the CAcroAVDoc API to spool the PDF directly to the newly set default printer.
Once the print job is successfully spooled, use the API call again to revert the system's default printer back to the originally saved string.
Use an Alternative PDF Printing Library
Avoid the limitations of Acrobat Interop by using alternative methods that natively support explicit printer targeting.
Manage and Print PDFs Seamlessly with WPS Office
While integrating legacy APIs for automated printing can be restrictive, WPS Office provides a robust, lightweight suite for managing PDFs, documents, and spreadsheets with excellent format compatibility.
- 1. Download the installer: Visit the official WPS Office website and download the free installation package.
- 2. Install the software: Run the installer and follow the on-screen instructions to set up WPS Office on your system.
- 3. Open and manage PDFs: Launch WPS Office and open your PDF documents directly to utilize its powerful reading and printing capabilities.
Frequently Asked Questions
Can I pass a printer name directly to PrintPagesSilent in the Acrobat API?
No, the PrintPagesSilent method does not include a parameter for specifying the printer name. It automatically routes the document to the current system default printer.
How do I print a PDF silently in C# without changing the default printer?
To print without altering the system's default printer, you must use a different PDF rendering library (such as PDFium) that allows you to specify the PrinterName property via the standard .NET PrintDocument class.
Is the Acrobat CAcroPDDoc API suitable for server-side PDF automation?
Adobe strongly discourages using Acrobat Interop APIs for server-side automation due to licensing restrictions, UI dependencies, and stability issues. Alternative server-compliant libraries are recommended for server environments.
