How to merge two pdf files in vb.net

Include the following namespaces in the Program. C using Syncfusion. Pdf; using System. Imports Syncfusion. Pdf Imports System. Merge finalDoc, source ;. Save "Sample. Close true ;. Merge finalDoc, source 'Save the document finalDoc. Close True. Note: Starting with v Free Trial. Did you find this information helpful? I agree to the creation of a Syncfusion account in my name and to be contacted regarding this message.

Please see our Privacy policy and Cookie Policy. Jordan Capa Apr 23, View 10 more comments. All Rights Reserved. IO; VB. NET Imports Syncfusion. OpenOrCreate " as iTextSharp may not support. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Net Merge multiple pdfs into one and export Ask Question. Asked 6 years, 3 months ago. Active 3 years, 8 months ago. Viewed 25k times. AddPage copy.

I did some debugging and have tracked the problem down to the following lines: copy. GetImportedPage reader, copy. GetImportedPage reader, page Why is this error happening? Vikky Vikky 3 3 gold badges 15 15 silver badges 33 33 bronze badges. Many hours': for finding solution for the error — Vikky. Vikky have you put break points in the code..? Vikky go to this link and convert the C code from the link that Bob posted to VB converter.

Vikky Ah yes, see my answer and tell me if that works for you. Show 4 more comments. Active Oldest Votes. This is the function i use. Document reader. OpenOrCreate With pdfDoc. SetPageSize reader. AddTemplate page, 0, GetPageSizeWithRotation i. AddTemplate page, 0, 1. AddTemplate page, 1. Sean Wessell Sean Wessell 3, 1 1 gold badge 11 11 silver badges 20 20 bronze badges. FYI: Possible duplicate of An item with the same key has already been added to dictionary. Thanks for such a great help — Vikky.

When this operation is repeated many times which is the case in some projects I helped debug , you end up with XObjects referring to XObjects referring to XObjects.

Too many nested XObjects can cause performance problems and even hit implementation limits of the viewer that make the viewer fail to render the document or even crash. BrunoLowagie - Absolutely. The answer should include any possible negative side-effects that might result, although we all know that we don't always get or know of such problems listed.

I've read a part of the sample chapter you've linked, and, as I'm interested in the subject of how best to merge PDF files, I'll probably be looking more closely into that. NET, you can unzip the package to find the RasterEdge. We have also provided you with detailed PDF processing demo project along with sample codes, which you can find in the Demos folder under RasterEdge. Demo directory with the file name RasterEdge.

NET programming codes. NET imaging application. In order to run the sample code, the following steps would be necessary. Add necessary references:. Use corresponding namespaces;. NET application. You may also combine more PDF documents together. In addition, VB. Save outputFilePath. Converter for C XDoc. PDF for VB. Word for C XDoc. Excel for C XDoc. PowerPoint for C XDoc. Tiff for C XDoc. Dicom for C XImage. Raster for C XImage.