How to Remove the First Page of a Document, Producing a New PDF

This guide explains how to remove the first page of a document, producing a new PDF.

First, create a PrizmDocServerClient:

var prizmDocServer = new PrizmDocServerClient(/* your connection info */);

Then, call ConvertToPdfAsync, passing in a ConversionSourceDocument with a pages argument set to "2-", indicating that you only want pages 2 and following:

ConversionResult result = await prizmDocServer.ConvertToPdfAsync(new ConversionSourceDocument("project-proposal.docx", pages: "2-"));

This will upload the file to PrizmDoc Server, ask PrizmDoc Server to convert pages 2 and following to a PDF, and then return once the conversion is complete.

The returned result is just metadata about the output; the actual output file has not been downloaded yet. To actually download the result from PrizmDoc Server, call result.RemoteWorkFile.SaveAsync:

await result.RemoteWorkFile.SaveAsync("output.pdf");

Or, if you'd prefer instead to download the bytes to a stream, call result.RemoteWorkFile.CopyToAsync:

await result.RemoteWorkFile.CopyToAsync(myStream);

Here is a complete example:

using System;
using System.IO;
using System.Threading.Tasks;
using Accusoft.PrizmDocServer;

namespace Demos
{
    class Program
    {
        static void Main(string[] args)
        {
            MainAsync().GetAwaiter().GetResult();
        }

        static async Task MainAsync()
        {
            var prizmDocServer = new PrizmDocServerClient(/* your connection info */);

            // Take a DOCX file and convert all of its pages except the first one to a PDF.
            ConversionResult result = await prizmDocServer.ConvertToPdfAsync(new ConversionSourceDocument("project-proposal.docx", pages: "2-"));

            // Save the result to "output.pdf".
            await result.RemoteWorkFile.SaveAsync("output.pdf");
        }
    }
}

The optional pages argument for a ConversionSourceDocument allows you to do a lot more than simply remove the first page. Just like a "pages" text box in a print dialog, the value can be a single page like "2", a comma-delimited list of specific pages like "1, 4, 5", an open-ended page range like "2-" (page 2 through the end of the document), or a combination of these, like "2, 4-9, 12-".