vb.net PDF集成

Question

We have a database that has decompiled data versions of PDF files stored as blobs.

The old method to retrieve the information was to grab the blob, compile the file on the local disk, and then use process.start to launch the new .pdf file that was created.

I guess I am looking for a class that can accept the decompile PDF data, turn it into a compiled PDF and show the end results without having to save the file to the local disk.

Anyone have any suggestions?

thanks.

Answer 1

You could just create the stream and send that into a Document Viewer control for PDF. There are tons of PDF Viewer controls, as long as they support a DataStream you should be fine. I'd let the process compile the PDF File into memory as a File Stream and send it to the PDF viewer. I have done the same thing but to a Microsoft format like xps, and doc but as long as the viewer supports a file stream you should have no problem.

This pdf viewer has a cost, but it might help: http://www.gnostice.com/nl_article.asp?id=109 the example they show goes by filename but its possible it might support the data stream method. Most views do.

Answer 2

使用您的旧方法浏览所有已编译的.pdf文件，并将它们存储在某个位置。