Windows Go (C Interface Binding) PDF library integration

This guide will help you integrate a free trial of the Apryse SDK with Go using Apryse Headers on Windows. Your free trial includes unlimited trial usage and support from solution engineers.

• Go 1.6+

  Make sure Go is part of your path variable.

• Apryse SDK for Windows

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1. Create a project directory inside your go/src/ folder. Call it myApp

   By default it should be at this location:

   C:/Users/User_Name/go/src/

2. Extract the folder from the .zip file into your project directory

   Copy src/myApp/PDFNetC(64)/Lib/PDFNet.dll into src/myApp/

1. In your project directory, create a new file called myApp.go

   Add the following code inside:

   package main
   // #cgo CFLAGS: -IPDFNetC64/Headers
   // #cgo LDFLAGS: -LPDFNetC64/Lib -Wl,-rpath,$$ORIGIN/PDFNetC64/Lib -lPDFNetC
   // #include "C/PDF/TRN_PDFNet.h"
   // #include "C/SDF/TRN_SDFDoc.h"
   // #include "C/PDF/TRN_PDFDoc.h"
   // #include "C/PDF/TRN_Page.h"
   // #include "C/Common/TRN_UString.h"
   // #include "C/Common/TRN_Types.h"
   // #include <stdlib.h>
   // #include <stdio.h>
   import "C"
   import (
       "fmt";
       "unsafe"
   )
   func main() {
       // PDFNet must be initialized before calling other Apryse API
       ccp := C.CString("YOUR_DEMO_KEY")
       C.TRN_PDFNetInitialize(ccp)
   
       // Create a new PDFDoc
       var doc *C.TRN_PDFDoc
       doc = (*C.TRN_PDFDoc)(C.malloc(C.size_t(unsafe.Sizeof(*doc))))
       C.TRN_PDFDocCreate(doc)
   
       // Allocate memory for a blank page
       var page *C.TRN_Page
       page = (*C.TRN_Page)(C.malloc(C.size_t(unsafe.Sizeof(*page))))
   
       // Allocate memory for a default rectangle
       var box *C.TRN_Rect
       box = (*C.TRN_Rect)(C.malloc(C.size_t(unsafe.Sizeof(*box))))
   
       // Create the page and add it to the document
       C.TRN_PDFDocPageCreate(*doc, box, page)
       C.TRN_PDFDocPagePushBack(*doc, *page)
   
       // Save the document as a linearized PDF
       var filepath C.TRN_UString
       C.TRN_UStringCreateFromCharString(C.CString("output.pdf"), C.int(10),
       C.e_UString_utf8, &filepath)
       C.TRN_PDFDocSave(*doc, filepath, 0);
       fmt.Println("Hello World!");
   }

   Save and close the file.

   Your folder should look similar to:

   

2. In the project folder, run:

   go build

   This will produce a myApp.exe file.

3. Run the executable file. The executable will produce a pdf with a blank page in a linearized format.

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