Merge PDF files with scConverter
Combine multiple PDF files into a single multipage PDF
Merging or combining multiple PDFs into a single file makes it much easier to manage and organize your documents.
You won't need to keep track of multiple files, which can be especially useful for projects, reports, or presentations that have multiple components.
With scConverter you can easily add PDF merging functionality to your application.
There are 4 functions available related to merge that are very easy to use. With these functions You can combine all pages, or a selection of pages, from the individual PDF files.
The PDF merge interface consists of the following functions:
- HRESULT PDFMergeInit(void)
- HRESULT PDFMergeAddFile(BSTR PDFFileName)
- HRESULT PDFMergeAddFileEx(BSTR PDFFileName, BSTR PageInformation)
- HRESULT PDFMergeClose(BSTR PDFOutputName)
To create a new merged PDF file, you start by calling the PDFMergeInit function.
Then you can start adding files and pages using one of the following two functions:
- PDFMergeAddFile
- PDFMergeAddFileEx
The first function, PDFMergeAddFile, will add all pages from the given file to the combined PDF file.
The second function, PDFMergeAddFileEx, have a second parameter that may be used to control which pages to include from the added PDF file.
Passing for example a page string like "1,2,3,10" will only include page 1,2,3 and 10 from the given PDF.
When all the required files, and pages, are added, you create the new PDF by using PDFMergeClose.
The name of the output PDF file is provided as parameter for the PDFMergeClose function.
Here is a complete code example for merging pages from 3 different PDF files into a single PDF file named output.pdf:
scconverter.PDFAddFile("filea.pdf"); //Add all pages from filea.pdf
scconverter.PDFAddFileEx("fileb.pdf", "1,2" ); //Add page 1 and 2 from fileb.pdf
scconverter.PDFAddFileEx("filec.pdf", "2,3,5,10); //Add page 2,3,5 and 10 from filec.pdf
scconverter.PDFMergeClose( "output.pdf" ); //Create new file named output.pdf
The newly created PDF file will then contain:
- All pages from filea.pdf
- Page 1 and 2 from fileb.pdf
- Page 2,3,5 and 10 from filec.pdf
Sample Application
You may take a look at the scMergePDF C# sample
to see how you can use scConverter in an application.
This sample do show a preview of each page in the source PDF file, and let you include all or just the selected pages into the combined final PDF.
The complete source code for this sample application is included in the SDK download.
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