Save modified PDF on server
Q: How do I save a modified PDF to server while using a standalone setup?
A: There are 2 ways you can do this:
-
Save the whole PDF: You can export the modified PDF as an arrayBuffer using
Instance#exportPDF
. Then you can convert this arrayBuffer to blob and sent it to your server. You can see an example in the Sending the PDF to a server section. -
Save the changes only: If you just want to save the changes made by the user on the original PDF, you can use
Instance#exportInstantJSON
to export a JSON containing all the changes. You can store this separately and apply it when you load the original PDF next time usingConfiguration#instantJSON
. With this approach you won’t have to repeatedly save the PDF file and you can use the original PDF everytime.
If you want to know how to do this on [Server-Backed mode][], read this guide.