Hi
Got this to work, sort of
Using a pdf-form as template for multiple pages do not really work.
Loading template , fill out form fields and then add the page to a new document works for one page. If you have multiple pages all pages get the same form values.
Solution for this is to rename the form field names to unique names before adding the page to the new document.
Using flatten should solve this by just removing fileds and add it as text but i do not.
So renaming fields and using flatten() make the pages show the right values when you view this in chrome, but when i view it in firefox or acrobat the text is blank. Same this if you make the field read only.
If i do not make Flatten or readonly the text is shown , but then the filelds are blue and editable.
Doing the same thing without form fields and just adding xGraphics works fine.
Including code if someone has the same problem. May not be the best way to do this. (the reason for the byte[] is that this will come from a db in the future.)
Code:
string inputFile = @"c:\temp\code_se_2.pdf";
string outputFile = @"c:\temp\filled_form.pdf";
byte[] templateBytes = File.ReadAllBytes(inputFile);
PdfSharp.Pdf.PdfDocument outputDocument2 = new PdfSharp.Pdf.PdfDocument();
AddPage(templateBytes, "User1", ref outputDocument2);
AddPage(templateBytes, "User2", ref outputDocument2);
outputDocument2.Save(outputFile);
void AddPage(byte[] templateByte, string name, ref PdfSharp.Pdf.PdfDocument d)
{
var _tmp = GeneratePdf(templateByte, name);
using (MemoryStream inputStream2 = new MemoryStream(_tmp))
{
PdfSharp.Pdf.PdfDocument document2 = PdfReader.Open(inputStream2, PdfDocumentOpenMode.Import);
d.AddPage(document2.Pages[0]);
document2 = null;
}
}
byte[] GeneratePdf(byte[] templateByte, string name)
{
byte[] _tmp =[];
using (MemoryStream inputStream = new MemoryStream(templateByte))
{
PdfSharp.Pdf.PdfDocument document = PdfReader.Open(inputStream, PdfDocumentOpenMode.Modify);
// PdfPage page = document.Pages[0];
// XGraphics gfx = XGraphics.FromPdfPage(page);
//
// // Define the font to use for drawing text
// XFont fontLarge = new XFont("Courie", 16, XFontStyleEx.Bold);
// XFont fontMedium = new XFont("Courie", 12);
// XFont fontSmall = new XFont("Arial", 9);
//
// int startLine = 105;
// string[] text = $"{name}".Split('\n');
//
// //
// foreach (var t in text)
// {
// gfx.DrawString(t, fontMedium, XBrushes.Black, new XPoint(320, startLine += 14));
// }
var uniqueIndex = Guid.NewGuid();
var fields = document.AcroForm.Fields;
var fieldNames = fields.Names;
for (int idx = 0; idx < fieldNames.Length; ++idx)
{
var fieldName = fieldNames[idx];
document.AcroForm.Fields[idx].Elements.SetString("/T", $"{fieldName}_{uniqueIndex}");
}
document.AcroForm.Fields[$"Name_{uniqueIndex}"].Value = new PdfString($"{name}");
//document.AcroForm.Fields[$"Name_{uniqueIndex}"].ReadOnly = true;
document.Flatten();
using (MemoryStream outputStream = new MemoryStream())
{
document.Save(outputStream);
_tmp = outputStream.ToArray();
}
document.Close();
}
return _tmp;
}
string outputFile = @"c:\temp\filled_form.pdf";
byte[] templateBytes = File.ReadAllBytes(inputFile);
PdfSharp.Pdf.PdfDocument outputDocument2 = new PdfSharp.Pdf.PdfDocument();
AddPage(templateBytes, "User1", ref outputDocument2);
AddPage(templateBytes, "User2", ref outputDocument2);
outputDocument2.Save(outputFile);
void AddPage(byte[] templateByte, string name, ref PdfSharp.Pdf.PdfDocument d)
{
var _tmp = GeneratePdf(templateByte, name);
using (MemoryStream inputStream2 = new MemoryStream(_tmp))
{
PdfSharp.Pdf.PdfDocument document2 = PdfReader.Open(inputStream2, PdfDocumentOpenMode.Import);
d.AddPage(document2.Pages[0]);
document2 = null;
}
}
byte[] GeneratePdf(byte[] templateByte, string name)
{
byte[] _tmp =[];
using (MemoryStream inputStream = new MemoryStream(templateByte))
{
PdfSharp.Pdf.PdfDocument document = PdfReader.Open(inputStream, PdfDocumentOpenMode.Modify);
// PdfPage page = document.Pages[0];
// XGraphics gfx = XGraphics.FromPdfPage(page);
//
// // Define the font to use for drawing text
// XFont fontLarge = new XFont("Courie", 16, XFontStyleEx.Bold);
// XFont fontMedium = new XFont("Courie", 12);
// XFont fontSmall = new XFont("Arial", 9);
//
// int startLine = 105;
// string[] text = $"{name}".Split('\n');
//
// //
// foreach (var t in text)
// {
// gfx.DrawString(t, fontMedium, XBrushes.Black, new XPoint(320, startLine += 14));
// }
var uniqueIndex = Guid.NewGuid();
var fields = document.AcroForm.Fields;
var fieldNames = fields.Names;
for (int idx = 0; idx < fieldNames.Length; ++idx)
{
var fieldName = fieldNames[idx];
document.AcroForm.Fields[idx].Elements.SetString("/T", $"{fieldName}_{uniqueIndex}");
}
document.AcroForm.Fields[$"Name_{uniqueIndex}"].Value = new PdfString($"{name}");
//document.AcroForm.Fields[$"Name_{uniqueIndex}"].ReadOnly = true;
document.Flatten();
using (MemoryStream outputStream = new MemoryStream())
{
document.Save(outputStream);
_tmp = outputStream.ToArray();
}
document.Close();
}
return _tmp;
}