在特定位置将多个pdf构建为单个pdf

Question

我有子pdf的，我想建立主pdf，其中包括子pdf在特定位置。这有可能吗，我该怎么做呢。

Answer 1

至于纯Java解决方案，请查看mkl的建议。

我尝试了PDFBox解决方案和PDFClown解决方案。两者都很好。在我看来，PDFClown更简单，因此在完成任务时不那么乏味。例如，少摆弄坐标，这当然有助于安排多页。

Answer 2

不是java，而是C#解决方案-作为替代PDF图章（使用Debenu快速PDF库）：

DPL.AddToFileList("file_list", "file_1.pdf"); //file with one page
DPL.AddToFileList("file_list", "file_2.pdf"); //file with one page
DPL.AddToFileList("file_list", "file_3.pdf"); //file with one page
DPL.AddToFileList("file_list", "file_4.pdf"); //file with one page

DPL.MergeFileList("file_list", "merged_files.pdf"); //merge the files into a new document

DPL.LoadFromFile("merged_files.pdf", ""); //load the new merged file
DPL.InsertPages(1, 1);  //it is important to add a new blank page, becasue in the next steps the CapturePage function removes the pages and the document must have at least one page - the final page
int captured1 = DPL.CapturePage(2); 
int captured2 = DPL.CapturePage(2); //the captured page is removed, so page numbers are decreased
int captured3 = DPL.CapturePage(2);
int captured4 = DPL.CapturePage(2);

DPL.SelectPage(1);
DPL.DrawCapturedPage(captured1, 100, 200, 100, 100); //you can set your custom coordinates: left, top, widt, height
DPL.DrawCapturedPage(captured2, 200, 200, 100, 100);
DPL.DrawCapturedPage(captured3, 300, 200, 100, 100);
DPL.DrawCapturedPage(captured4, 400, 200, 100, 100);

DPL.SaveToFile("merged_files.pdf");