/// <inheritdoc/>
public async Task <IPDFtkResult <byte[]> > FillFormAsync(string pdfFilePath,
IReadOnlyDictionary <string, string> fieldData,
bool flatten,
bool dropXfa)
{
using var outputFile = TempPDFtkFile.Create();
using var xfdfFile = await _xfdfGenerator.CreateXfdfFile(fieldData);
var args = new List <string>(new[]
{
pdfFilePath,
"fill_form",
xfdfFile.TempFileName,
"output",
outputFile.TempFileName
});
if (flatten)
{
args.Add("flatten");
}
if (dropXfa)
{
args.Add("drop_xfa");
}
var executeProcessResult = await _pdftkProcess.ExecuteAsync(args.ToArray());
return(await ResolveSingleFileExecutionResultAsync(executeProcessResult, outputFile));
}
/// <inheritdoc/>
public async Task <IPDFtkResult <byte[]> > ConcatAsync(IEnumerable <string> filePaths)
{
using var outputFile = TempPDFtkFile.Create();
var inputFileNames = string.Join(" ", filePaths);
var executeProcessResult =
await _pdftkProcess.ExecuteAsync(inputFileNames, "cat", "output", outputFile.TempFileName);
return(await ResolveSingleFileExecutionResultAsync(executeProcessResult, outputFile));
}
/// <inheritdoc/>
public async Task <IPDFtkResult <byte[]> > StampAsync(string pdfFilePath, string stampPdfFilePath)
{
using var outputFile = TempPDFtkFile.Create();
var executeProcessResult = await _pdftkProcess.ExecuteAsync(pdfFilePath,
"multistamp", stampPdfFilePath,
"output", outputFile.TempFileName);
return(await ResolveSingleFileExecutionResultAsync(executeProcessResult, outputFile));
}
/// <inheritdoc/>
public async Task <IPDFtkResult <byte[]> > GetPagesAsync(string inputFile, params int[] pages)
{
using var outputFile = TempPDFtkFile.Create();
var pageRanges = GetPageRangeArgs(pages);
var executeProcessResult = await _pdftkProcess.ExecuteAsync(inputFile, "cat",
string.Join(" ", pageRanges),
"output", outputFile.TempFileName);
return(await ResolveSingleFileExecutionResultAsync(executeProcessResult, outputFile));
}
internal async Task <TempPDFtkFile> CreateXfdfFile(IReadOnlyDictionary <string, string> fieldData)
{
var inputFile = TempPDFtkFile.Create();
var xmlWriterSettings = new XmlWriterSettings()
{
Async = true
};
#if NETSTANDARD2_1 || NETSTANDARD2_0
using var xmlWriter =
XmlWriter.Create(inputFile.TempFileName, xmlWriterSettings);
#else
await using var xmlWriter =
XmlWriter.Create(inputFile.TempFileName, xmlWriterSettings);
#endif
await WriteXmlDocument(xmlWriter, fieldData);
await xmlWriter.FlushAsync();
return(inputFile);
}