Merge a formatted pdf to pdfDocument

[bernt]

Hi

Need some guidance. I'm putting together a PDF document in .net to be printed when its done. In this document I want to merge another pdf document received by a Web Service in Base64 String format.

My current solution is to write it to disc and then use pdfDocument.LoadFromFile. A bit clumsy i think.

Bernt

[burning.liu]

Hello bernt,

Thanks for your inquiry.

Please refer to the code below to meet your requirement:

Code: Select all

//Load the existing document
MemoryStream ms1 = new MemoryStream(File.ReadAllBytes("xxx.pdf"));
//Load the pdf document received by a Web Service in Base64 String format
MemoryStream ms2 = new MemoryStream(Convert.FromBase64String("xxxx"));

Stream[] stream = { ms1, ms2 };

//Merge and save
PdfDocument.MergeFiles(stream).Save("outpu.pdf", FileFormat.PDF);


[bernt]

Hi

Thanks, the memory stream is nice, is there a way to avoid saving it to disc? To print it off to printer directly?

Bernt

[burning.liu]

Hello,

Please refer to the code below:

Code: Select all

//Load the existing document
MemoryStream ms1 = new MemoryStream(File.ReadAllBytes("xxx.pdf"));
//Load the pdf document received by a Web Service in Base64 String format
MemoryStream ms2 = new MemoryStream(Convert.FromBase64String("xxxx"));
//Merged file stream
MemoryStream ms3 = new MemoryStream();

Stream[] stream = { ms1, ms2 };
//Merge and print
PdfDocument.MergeFiles(stream).Save(ms3);

new PdfDocument(ms3).PrintDocument.Print();


[Betsy]

Hello,

Have you tried the code provided? Has your issue been resolved? Could you please give us some feedback if convenience?

Best Regards,
Betsy

[bernt]

Hello Thanks for that.

The issue I'm trying to solve is a bit different now. Please let me start over....

I have a PDF document (a transport label) received from DHL via a web service as Base64String.

Code: Select all

                File.WriteAllBytes(pdfFileName, Convert.FromBase64String(val.Value))
                Dim proc As New Process
                proc.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
                proc.Start("AcroRd32.exe", String.Format("/N /T {0} ""{1}""", pdfFileName, printer))

The only thing I want to do with it is to get it printed on a Datamax printer without losing resolution. I can get this done saving the pdf document on disc and start an adobe process that prints the file. But this only works if I set the default papersize exactly to the pdf document size, otherwise the printed resolution will bad.

SO what I'm looking for is to be able to set the printer papersize based on the pdf document size as received from DHL (it varies with purpose) and print it.

I'm convinced Spire can do this for me, looking forward to You suggestions.

Bernt

[burning.liu]

Hello bernt,

Thanks for your inquiry.

For your requirement, please refer to the code below:

Code: Select all

PdfDocument pdf = new PdfDocument();
pdf.LoadFromFile("Sample.pdf");

SizeF pageSize = pdf.Pages[0].Size;

PageSettings ps = new PageSettings();
ps.PaperSize = new PaperSize("MyPaperSize", (int)pageSize.Width, (int)pageSize.Height);

pdf.PrintDocument.DefaultPageSettings = ps;


Best Regards,
Burning
E-iceblue Support Team