Will JavaScript in a PDF run an IOS WebView - javascript

I have a PDF file that include JavaScript code for validation of the data entered in the PDF. This runs Adobe Reader. I would like to include the same functionality in my iPad App.
If I load this PDF in a UIWebView, will the JS code run or the JS runs only in Adobe Reader?

You cannot execute JavaScripts from within a PDF in UIWebView, but you might be able to implement those functions externally

The following might help if you just need a UI and you are willing to re-develop the validation logic. Mozilla's pdf.js has an example at https://github.com/mozilla/pdf.js/tree/master/examples/acroforms that is using canvas to display the PDF content using HTML/JS and overlays HTML input elements. However there are no execution of the embedded in PDF JavaScript yet.

Related

Is there any way to display pdf files in browser such that the viewer can only read the file and can't save/download/print the file in any form

I have to integrate pdf files in my PHP web application such that the viewer of the file can not save/download/print the pdf file.
I am finding a way of doing this in any way like using javascript, jquery or straight in PHP or any other way if any.
I think you'd need a custom PDF viewer in your app, like what Google Drive does with images and documents.
I'm not aware of any functionality that allows an app to tell Chrome/Firefox or the registered PDF handler to limit user interaction like you mention.

Download webpages with javascript dynamic content

I have a php script to download some webpages. The problem is that the downloaded files haven't got the dynamic content which is written by javascript.
I suppose I need a javascript engine or something similar. Is there some php library or command-line program for downloading a webpage with all its dynamic content?
Example of what I need: I want to download the webpage www.example.com/product.html.
Now: I'm able to download the code:
<h1></h1>
What I want: I want to download the code:
<h1>Title written by javascript</h1>
This is happening because the JavaScript is not downloaded properly. You are only downloading the HTML file and not the attached JavaScript files.
Once the JavaScript will be available for the HTML page, all the dynamic content would be coming correctly.
Another Workaround:
You can use selenium like web automation libraries that actually opens the page in a browser, let the browser execute the js and prepare the DOM. After this you can download the HTML content.
One more:
You can make use of PhantomJs to download the HTML page, process the Javascript and give you the final output for save.
https://superuser.com/questions/448514/command-line-browser-with-js-support

Running JavaScript code on PDF pages on my domain?

I it possible to run javascript code on for example: mydomain.com/pdf/pdf-example.pdf?
Any ideas how to accomplish this?
My intention is to add live chat code so that we can help customers while they are looking at the PDF
You can use pdf.js to render a PDF file onto a standard HTML page. So instead of linking directly to the PDF file, you would create a new HTML page, where you would embed the pdf.js viewer, as well as any additional custom Javascript. Here is a demo. The downside to pdf.js, is browser support is limited.
Another option is pdfobject, which enables you to embed PDF's within pages. This uses the browsers native PDF viewer for rendering.

display multi-page pdf file as single page files in html

I have a pdf file embedded in a HTML document. Is it possible to display a multi-page pdf file as multiple single page files in html? Something similar to a ppt where each page of the pdf doc is equivalent to a slide.
Thanks in Advance!
You can also use Google PDF viewer for this purpose. As far as I know it's not an official Google feature (am I wrong on this?), but it works for me very nicely and smoothly. You need to upload your PDF somewhere before and just use its URL:
<iframe src="http://docs.google.com/gview?url=http://example.com/mypdf.pdf&embedded=true" style="width:718px; height:700px;" frameborder="0"></iframe>
Probably the best approach is to use the PDF.JS library. It's a pure HTML5/JavaScript renderer for PDF documents without any third-party plugins.
Online demo: http://mozilla.github.com/pdf.js/web/viewer.html
GitHub: https://github.com/mozilla/pdf.js

Use javascript to switch pages in acrobat reader in webbrowser

For a project I am looking for a good way to display pdf files in a webbrowser (IE8 and newer). The browsers used in my project have acrobat reader installed, so thatwillbe the preferred way to visualize thepdf file.
Is there a way to access acrobat reader currently opened in a div to (for instance) switch pages or jump to a given bookmark? Is it also possible to listen for text selection events?
Thanks in advance!
I'm not sure you can control the PDF from the outside of the page. However, pdf.js is a PDF renderer written in Javascript. It allows you to embed a PDF viewer inside a page and fully control it, including flipping pages, and the like. It may just be what you're looking for!
Having worked on this problem for some time, I now use the following solution:
Use pdfObject.js to embed the pdf file in my webpage.
Communicate between pdf and html using the HostContainer. Important here is that you are able to put some javascript in the PDF file.
Important note is that this only works with the embedded Acrobat Reader/Pro version.
see: http://www.javabeat.net/articles/print.php?article_id=301)
Good luck. If you encounter problems, just leave a message, perhaps I can help.
This won't solve all of your feature requests, but you may want to take a look at the PDF open parameters. If you open a pdf with the appropriate hash-url, you can control reader's behavior.
For example, the following will open a PDF and go to the third page of the pdf:
http://example.org/doc.pdf#page=3

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