Digital signature with PDFTron for Android - pdftron

In the code of the lib there is a signature and a digital signature, but in the samples I could not see that there is the option to use a digital signature. For example when I open with Adobe Reader on Windows the PDF file "Getting Started.pdf" that comes with the lib there is a signature box, when clickling this you can add a digital signature, but doing this in the sample "Complete Reader" only shows the normal view to add a signature. So, if there is a code to add a digital signature to a PDF, is there a sample of it? or is this supposed to be implemented by ourselves?

Digital signatures are not part of the CompleteReader UI, but they are part of the Tools library. So you can customize the UI to add Digital Signatures.
You can also find sample code in the DigitalSignatures sample included with the SDK:
https://www.pdftron.com/pdfnet/samplecode.html#Sig

Related

iText and DocuSign - PDF Validation Error

My company has one program that creates a pdf from a template pdf and another that sends that pdf through DocuSign. It has worked all along for I don't know how long (it predates me working here). But lately when I try to send the pdf through DocuSign, I get a PDF Validation Error. This just started happening in the last week or two. I can open the file in Adobe Acrobat Reader and print it with CutePDF Writer and then it works fine. Just don't know why DocuSign all of a sudden doesn't like the pdf's. Any ideas would be greatly appreciated.
You have a potential regression bug.
Confirming a regression bug
Isolate: does the PDF work via the DocuSign web app? If it does then the problem is with your API integration and you'll need to determine the problem there.
If you have an older pdf that was used to successfully create an envelope, test it to see if it still works (via the DocuSign web app). If it does then your PDF software changed. Not a regression bug.
The best test is that a PDF that previously worked no longer does.
If you've confirmed a regression bug
Please contact DocuSign developer support
You'll either give them the PDF to analyze or, if it contains private data, you should create a test pdf that also doesn't work via the DocuSign we app.
Catching regression issues sooner
DocuSign strongly recommends that all software developers build automated tests for their software to exercise the DocuSign integration/APIs.
Then set up the tests to automatically run daily against the test platform (demo.docusign.net). Accounts on that system are no charge.
If your automated test detects a regression problem then you should immediately contact DocuSign Developer Support.
Regression bugs are rare
DocuSign uses thousands of automated regression tests to ensure that new releases don't cause regression problems. But issues do slip through.
By testing against the test platform, you have the opportunity to discover an issue (and alert DocuSign) a week or more before the scheduled production release.
Thank you all for your suggestions. They were very good suggestions. However, it turned out that it was my pdf template that was being used to create the pdf. It had Adobe signature fields in it and it appears that Docusign has decided they don't like Adobe signature fields. I removed those fields from the pdf form and it worked fine.

How to modify digital twins management URL?

I am a newbie in Azure Digital Twins and Azure Management API, and I following this document, https://learn.microsoft.com/en-us/azure/digital-twins/tutorial-facilities-setup
In the section "Deploy Digital Twins", part 5, it asks about modifying the management URL and I don't know how to do that. Maybe this is very easy things for many, but I am new in this and I really confused about how to do that change. Can anybody help me with this?
I understand your confusion, the word "modify" implies you're making a change. What is meant here is that you need to copy the URL that is displayed on your instance to any text editor and change it. You will be relacing 'swagger' to 'api/v1.0/' See below:
original:
https://yourDigitalTwinsName.yourLocation.azuresmartspaces.net/management/swagger
changed:
https://yourDigitalTwinsName.yourLocation.azuresmartspaces.net/management/api/v1.0/
You will need this URL when you get to this step in the tutorial.

HTML Signature from Topaz

Need help for introducing a signature field in my HTML form. I am using Topaz signature pad and I need the code for implementing signatures in the HTML form. Topaz is already connected in my machine and is working fine for PDF documents. I don't want to save those signatures.
Just an FYI I am working on Symitar(Core banking System)
Check Topaz Web demos.
This is for SigWeb.
Use development tool to see the code behind and learn from it. We try to help but you have to try first not just simply ask for code.
Good luck.

How to build XML device description for a minimalistic but fully DLNA compatible audio renderer device?

I'm developing an embedded DLNA audio media renderer in C++ which will capture audio stream and use it as a source for LED controller to create visual effects.
Currently I have chosen gupnp library. Its documentation claims that it can generate C code "scaffold" if I feed it with a correct service description XML file.
I read DLNA specifications documentation but it's not easy to put all the absolute minimal requirements together. For now, I know only that I'll need ConnectionManager, RenderingControl and maybe AVTransport service but I'm not sure which methods will be absolutely required to allow the device to receive mp3/aac/wav audio streams from any DLNA media server/radio streamer etc. out there.
I'll be grateful for information where to find such a template or instructions for building a DLNA compatible XML audio renderer template (MediaRenderer:1 should work fine) with minimum required functions and variables to feed into UPNP generator tools (specifically, gupnp).

Digital Signature Tab in .exe of the desktop project

I have an .net desktop application, I want to sign application like messenger and skype.exe.
The below dialog box is takin by the properties of skype messenger..
http://i.imgur.com/PIo0d.png
It is a good idea to formulate your question besides describing what you want.
You need to buy code signing certificate from one of certificate authorities (we use GlobalSign as their certificate can be used for driver signing) and sign your compiled application using signtool (included in Windows and .NET development kits).

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