How can I split a multi-page PDF file into single pages in an array using Swift?
I have a six page PDF document that I would like to display using webview with a nice page turning effect. The first part is done, displaying some html text on each page, but I would like to display pages from a PDF document instead.
Any help would be most appreciated.
Default PDF view in UIWebView
I want to convert UIWebView to Display this much zoom by default for this PDF.
is it possible to do this for PDF?
my webview displays a pdf file that has bookmarks for certain pages. How to I get the code to automatically scroll to the page of a particular bookmark in the pdf?
You better use iOS PDF viewers. (E.g. FastPdfKit)
My upcoming mobile web project requires viewing dynamically chosen pdf files inside the webpage. I am using iFrame to display the pdf file and the file can be scrolled using two-finger scrolling. But the problems I am facing are:
The first page of the file is not displayed completely on the iPad and gets cut off along the width unlike when I view it on the desktop browsers where the first page of the pdf is always entirely displayed although zoomed out to fit in the iFrame area.
There is no visual indication for the users that the pdf document can be scrolled, i.e., there is no scroll bar on the pdf document.
The controls (page navigation, zoom etc.) for the pdf viewer (Adobe reader) don't appear on the document unlike when I see it on the desktop browsers.
What is the best way to achieve what I am trying to do? Do any of you experts know any solutions/workarounds to the problems I am facing? An entirely different approach using anything other than iFrame can also be considered.
The reason why the pdf should be inside the html page is that, the list of pdf files will be on a menu bar on the left side of the page and the user can click on any of them to view on the same page. Ideally, they will have the capability to toggle between full screen view and that view.
Any help is appreciated.
I created a tiny JavaScript module that helps you to show a PDF inline and be able to scroll it. But I also couldn't figure out a way to make it fit the total width of the parent container.
Check it out: https://github.com/williamrjribeiro/ipdf-scroll
Cheers.
I came across this Recommended way to embed PDF in HTML? while researching on the web to find an answer.
The mentioned link discusses about some options that I can use and the google document viewer works for me though don't know if there is anything (like data limit) I need to be aware of before using it on the website. Also I have no idea if it is a good solution (though the full screen mode is not available, but zoom-in/zoom-out and next/prev page buttons are there are show up in the mobile safari on the iPad) to use for an web app that will be run on the iPad.
Anyway, I will keep researching for a better solution and if i don't find any, I'll stick to the google document viewer.
The issue appears to be a bug with Safari on the IPad.
I didn't find a solution for embedding the pdf in html but I did find this:
If you return FileStreamResult from your controller action instead of a view, the pdf will open in a new tab, it's not embedded html but at least your user is not having to download files and open them manually.
I had the same problem of the pdf not being displayed completely. The only thing I found to fix this was the change the size of the div containing the pdf.
For example if the element containing the pdf is a div then I change its width to any value and the rollback to the value it had before. Changing Width or height any one works.
Sometimes I had to wait a little using a setTimeout before calling my resizable method
A lot of webpages today, have meta tags or CSS styles, which defines the content width to 320px.
When you load one of these pages in an UIWebView it is not possible to pinch-to-zoom.
(You can try it in the Safari-browser on the iPhone).
As a visual impaired person, I find that very annoying.
Is there anyway to enable pinch-to-zoom for these kind of pages?
Can I in anyway remove those tags/styles?
Can I in some way manually code some mechanism in an UIWebView, which could emulate this functionality?
Any help would be appreciated.
Thank you.
You could load the HTML file that you are going to display in your UIWebView into an NSString, then use a regex to remove the viewport meta tag (which is what I believe disables the zooming), and then load the new NSString into the UIWebView.