Do I need to have the SDK to update a PDF form using an HTML form for data entry?

Question

I would like to update as many PDF forms as possible based on
the users initial log-in information so that they are not
constantly , and repetitively entering basic information.
Can this be done using Javascript and does it require the SDK
to perfom?
I would appreciate your help with this real-world scenario.
Thanks

Answer 1

Hello
I am using Web Client with the DownLoadFile() option to download files from a site.  If too many requests come in too fast it will banned that address for 24 hours.  (A DDOS security measure) I need to have the program wait until the file
is downloaded before making the next request but be running in the background so not to freeze the application.  A progress form will allow the user to know the status of the downloads. 
I see something about asynchronous downloads but do not seem to understand how I would make use of it or if it is the method I want to use.
If someone could point to or give a good example of what I need to do, it would be most welcome.
David Edwards
David,
There are two ways which come to mind here, both using the WebClient:
The first is that in a BackgroundWorker, you use the synchronous download method. The synchronous method is a blocking call so obviously it can only get one at a time, and when that one is completed, the loop then starts the next.
The second way - also in a BackgroundWorker - is to use the asynchronous method. The reason for this is because only the asynch method provides events to monitor progress and know when the file has completed. This gets a bit more involved because you're
still processing them in a loop, but it's definitely something that can be done - I've done it several times.
You haven't really given many details, so beyond this general conceptual description there's not a lot more that can I can explain, but your goal definitely can be achieved using a WebClient.
I hope this helps. :)
Still lost in code, just at a little higher level.