itext pdf multiple displays of a signature - pdf

I did my research around this topic, I understand in many countries there are legal reasons of not having this. But I have a requirement and need to have display for an external signature on each page. Any working approach/snippet will be highly appreciated.
Also is it possible to help annotations on each page for an existing signature? If yes, any code snippet will be helpful.

Related

Annotate the pdf file on the location clicked by user

I am having trouble in trying to find the solution for the below described problem.
Annotate the PDF file when user clicks on specific location in pdf and then finaly save the pdf which in future opens at annotated location.
How to approach this?
What I have tried.
I have tried to find various libraries irrespective of programming language (since programing language is not the dependency)- found few libraries like minipdf in python, pdfbox in java to mention few relevant ones. Finally selected pdfbox since it seemed to be mature enough to provide the solution closeby.
There are various hurdles now how to get user the location clicked by the user? since after getting the location I can able to perform various actions like annotating at the clicked location and then saving the pdf on the same specific location.
It seems I have to write whole pdf javascript to approach it but again how to do so?
I had similar problem and have solved it the other way. In my case I am not opening PDF in Adobe reader, but in browser. So what I did is converted the pdf to html using python libraries (Let me know if you are interested, I will share different library names with their pros and cons).
Now that html can be edited easily. We can put hyperlinks, highlights everything there as source code is with us.
This workaround may be applicable to you if your front end is web based.
PS: Wanted to post this workaround as comment, but couldn't due to little less reputation count as of now. Hope, it won't be downmarked :)

Objective C get html page's links

I'm quite new in Objective C programming and I'm trying to make an application that returns all the link addresses in HTML page. In that case i shouldn't just parse the HTML, but get these links intercepting them from the page's network request.
Is it possible to intercept the application's network requests or something?
Thanks
Coincidentally, Ray Wenderlich's rather AWESOME iOS tutorial site posted this article in the last hour. As you are new to iOS/ObjC, I highly recommend reading it thoroughly.
Let’s say you want to find some information inside a web page and
display it in a custom way in your app.
This technique is called
“scraping.” Let’s also assume you’ve thought through alternatives to
scraping web pages from inside your app, and are pretty sure that’s
what you want to do.
Well then you get to the question – how can you
programmatically dig through the HTML and find the part you’re looking
for, in the most robust way possible? Believe it or not, regular
expressions won’t cut it!
And before you think Regular Expressions might really be an answer, please read this.

pdf and netbeans

I am using netbeans to develop my project. I need to put a pdf on a website and according to certain conditions, only parts of the pdf should be view-able.For example, suppose payment made is rs.500. I will let the user view 2 chapters in the pdf for a period of one week. I have no idea how to do this.Can someone help me?
Since you're using NetBeans, I'll assume that you're using Java as your language.
You generate PDFs using either XSL-FO or something like iText. I prefer XSL-FO and Velocity templates, but your situation might be different.
The rules for what to display under different conditions need to be expressed in Java using controllers that accept a request, bind parameters to objects, execute rules, and stream the response as a PDF depending on the outcome. It's not an easy answer.
There are various Java viewers and several have plugins (there is one at http://www.jpedal.org/support_siNetBeans.php).
Your best bet would be to generate a copy of the PDF with just the pages allowed and then display that.

How does wikipedia generates PDF

I would like to know on how wikipedia (http://en.wikipedia.org/) creates PDF? It seem to be using some application at the back-end. Could anyone please let me know on how this is done?
Thanks
Srikanth
Wikipedia runs Mediawiki.
A Google check tells me that they have two PDF extensions.
This one is the one who's still mantained: PDF_Writer
It doesn't use a PHP HTML→PDF generator, (though there are some)
It actually does something trickier and more clever.
The PDF Writer uses the Python Reportlab libraries to generate PDF based on a
DOM derived from parsing mediawiki-markup using the mwlib parser.
To confirm ZJR's answer, these are the document properties:

Embedding PDF on website - without uploading to other service

On our site we use Google's document viewer to let users view PDF and other documents in the browser. But Google's viewer is not very good, when used without being Google. Quite often it doesn't show anything, and the limit for the PDF file is around 10/20mb. The main issue is that it quite often just doesn't show any files.
So, we're looking for a way to show pdf (and other documents) on our site. It would be great if it could be done without us having to upload it to another service as this complicates the process.
The pricing is not an issue, so even if you know an expensive service, it would be great to let us know.
Or if anyone has other solutions then it would be great to hear of that too.
Thanks,
Tobias
Through another source we were suggested to use Scribd, and our first tests shows that it works great. The documentation is good-ish so it's easy enough to set up.