Merge two array of bytes in one pdf file

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Dears,

I have two array of bytes each one of them represents a report of one page.
i want to to merge them and generates a pdf report of two pages.

how can i do that?

What I have tried:

C#

byte[] bytes = ReportViewer1.LocalReport.Render("PDF", null, out mimeType, out encoding, out extension1, out streamIds, out warnings);
byte[] bytes1 = ReportViewer2.LocalReport.Render("PDF", null, out mimeType, out encoding, out extension1, out streamIds, out warnings);

byte[] newByteArray2 = bytes.Concat(bytes1).ToArray();

System.IO.File.WriteAllBytes("C://MyNewReport.pdf", newByteArray2);

Posted 27-Jun-16 4:30am

_ProgProg_

Updated 27-Jun-16 4:50am

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[no name] 27-Jun-16 10:45am

http://stackoverflow.com/questions/114692/reportviewer-localreport-merge-reports

[no name] 27-Jun-16 11:24am

Or you can create like your sample above and producing 2 PDF files, then merge it using iTextSharp : http://weblogs.sqlteam.com/mladenp/archive/2014/01/10/simple-merging-of-pdf-documents-with-itextsharp-5-4-5.aspx

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OriginalGriff · Answer 1 · 2016-06-27T04:50:00

Solution 1

Just concatenating byte arrays won't do anything useful - DPF is a "container" format, so just "bolting" two containers together doesn't produce one big container. Any more than stapling two bags of sugar together would create a bigger bag full of twice as much sugar...

Have a look at this: Splitting and Merging PDF Files in C# Using iTextSharp[^]

Posted 27-Jun-16 4:50am

OriginalGriff

Comments

_ProgProg_ 28-Jun-16 5:38am

Couldn't i merge the two byte arrays and then save them???

OriginalGriff 28-Jun-16 5:46am

No.
They don't just contain the page text, but the "whole package" which makes up a PDF document. If you just cram the two arrays together you get two different packages one after the other, and the PDF reader doesn't know what to do with them both.
What you have to do is create a new document which contains both pages.

_ProgProg_ 28-Jun-16 5:50am

Yes this is what i want which is to create a new document contains the both pages without creating pdf for each byte array. I mean using the two byte arrays directly to generate the new document.
Is that applicable?

OriginalGriff 28-Jun-16 6:00am

Follow the link and start reading!