We have an application aimed at assisting people with reading difficulties. For that purpose we have written an Adobe Reader plugin which makes our application able to read text from PDF documents. While it reads it also highlights the words it is reading so that the user can keep up with it. However, after the 10.1.1 update of the Reader the highlighting no longer works.
The plugin was originally developed using Acrobat SDK 8.1, but the problem remained even after I upgraded to SDK 10. The highlighting is done using the AV-layer with the AVPageViewHighlightText() method.
We need to know if there is something in this recent update which breaks the highlight functionality, and if so, is it intentional?
PS: We are running with Protected Mode disabled since reading doesn’t work at all with it.
Ok, I found the problem.
We are using the void AVPageViewDrawNow(AVPageView pageView) method to make sure that some changes are applied in certain cases. The behavior of this method seems to be different in Adobe Reader 10.1.1. Removing the call brought our highlighting back to life.
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I am programming using C++ /CLI with wxWidgets on Windows 11.
I'm Also Using .NET threads
When I create a wxMessageDialog in a secondary thread and run ->ShowModal() , it works.
But when I create a custom dialog in a secondary thread, running ->ShowModal() pops up a wxWidgets debug alert window :
I tried searching on the wxWidgets forum for the same issue but couldn't find one. I found similar issues but none of them addresses my problem.
I also tried to surround MyCustomDialog->ShowModal() with calls to wxMutexGuiEnter(); and wxMutexGuiLeave(); , but that also didn't work.
I also learned about wxThread while scrolling through the forum but if wxMessageDialog works without me having to create a wxThread, I shouldn't have to create a wxThread myself.
I know I shouldn't be calling GUI methods from a secondary thread, but somehow wxMessageDialog's ShowModal() doesnt have a problem with that.
I would like to know how wxMessageDialog works, and if I can implement the same thing with my custom dialog.
Thank you.
In a few words, no there's no way to use a custom dialog from a secondary thread with current implementation and in the foreseeable future.
Even though your current code works today using wxMessageDialog, there's no guarantee that it will continue to work tomorrow, or on different Windows version or on other OS.
Some more details:
wxMessageDialog and a custom dialog are significantly different internally, even though they represent similar UI features.
wxMessageDialog has native implementation, and you can find its wxMessageDialog::ShowModal() implementation in src/msw/msgdlg.cpp.
A custom dialog will be assembled an run by wxWidgets code, even though the dialog itself and other components are native widgets. You can find wxDialog::ShowModal() in src/msw/dialog.cpp.
If you really want to pursue some experimental development (because it would still not be suited for anything else), and being on Win 11, you could try wxRichMessageDialog. It provides more features than wxMessageDialog and on Vista and later versions it has native implementation, which might go along with your "hack".
But again, using UI from secondary threads will lead to a dead end sooner or later.
According to their website (http://www.gdpicture.com/products/managed-pdf/) you have the ability to extract fonts from a PDF file. However, I can't seem to find the functionality to do this. I have encountered several methods to add them, but none to extract them (and they don't show as embedded files). Has anyone tried to do this, or have experience with GdPicture?
Version: 14 (Current)
Disclosure: I am part of the ORPALIS technical staff that edits the GdPicture.NET SDK, that's why I know there's an ongoing communication about this already.
It is my understanding that you have a support case open for a merging issue relative to fonts and as you know, our development team is currently working on a fix that will solve it so I strongly recommend that you wait for them to finish.
There's no extraction of the embedded font as you might expect at the moment but the development team is also working on one, we will let you know as soon as it is available (it should be very soon).
You can get information about (already) embedded fonts using the GetFontCount, IsFontEmbedded, GetFontName and GetFontType methods.
You can also add new embedded fonts (of different types) using the AddFontFromFileU, AddStandardFont, AddTrueTypeFont, AddTrueTypeFontFromFile, AddTrueTypeFontFromFileU and AddTrueTypeFontU methods.
I'm trying to develop a tool/web application such that it will import a PDF file and I need to select text and images available in PDF by selecting them with a mouse click and marking them as title,content and image with a button click (3 different button) where the marked contents and image will be copied to clipboard or will be pasted into a word document which is going to be a another part. So in which programming language is this possible to work with and carry on ?
I'd probably try researching pure browser-side solution using pdf.js and clipboard API.
Otherwise, you'd still need clipboard API in the browser and the server-side may actually be powered by any programming language which can be hooked into a web server and has a library to parse PDFs.
You said nothing at all about your prospective server platform but to name a few, .NET has PdfSharp which is able to read PDFs, Python has a host of tools available for it. After all, there exist a bunch of command-line utilities to extract data from PDF which can be called using any PL able to call external processes.
Note that this only appears to be a simpler solution than using pdf.js but note that unless your PDFs are really uniform (say, invoices created by some piece of software), and so you'll be able to make your PDF parser know which bits of data it has to extract and return, the parser will need to returl all the data it extracted to the client, and you'll need to somehow render it all there. May be it's exactly what you need but maybe not.
Since PDFs are really tailored for typesetting and not presenting information in a structured manner, I'd try to piggyback on an already hard-core PDF rendering solution which runs in the browser, so see above.
My company is moving to a new system which has a very poor printing system in place but it does create PDF's on the file system.
My Boss has asked me to create an application to print all the PDF's based on a JOB number.
I've gotten the filesystem search working, I have used the acrobat sdk to open each file and find certain strings to determine which pages go where.
The problem I'm dealing with is that the Acrobat SDK doesn't seem to support choosing printer settings.
My first thought was no big deal I just change the default windows printer and just change the tray so the invoice part and equipment listing go to white paper from tray 1, and the remittance goes to tray 2 on blue paper.
It seems like the printdocument in .net can handle alot of printer settings but I'm not sure if a PDF can be used with a print document.
Looking for any advice or assistance.
Thanks,
Joshua
I found the answer was to use Win32.
Here was the website that helped me get through some of the hurdles:
http://edinkapic.blogspot.com/2011/01/how-to-set-printer-default-paper-bin-in.html
The underlying problem is that PDFs are combination of vector graphics for the text and bitmapped images. It all needs to be rendered into a format the printer understands before being printable.
Ghostscript does this very nicely and if you need to do it from .Net, GhostScript.Net provides an excellent vb.Net interface.
The problem I'm dealing with is that the Acrobat SDK doesn't seem to support choosing printer settings.
You can't use the desktop version of Acrobat for this, since it's not designed for unattended operation and requires a user interface. Also, I believe it violates Adobe's license.
I've been asked to investigate the feasibility of adding watermarks to documents when printed through our application. The documents will consist of word, pdf and cad.
The interface of the application is vb6 with a plethora of vc6 dll's.
I can see a couple of possible solutions:
Convert all documents to PDF, add a watermark and then print.
Find a print driver that will add a watermark to all documents prior to printing and install it and reenable it at runtime if it gets disabled for any reason.
3rd Party suites are possibility (we use Volo View Express for viewing CAD files) but since this application is nearing end-of-life we wouldn't want to spend too much on it.
Has anyone had any experience of the above? Any gotcha's that will bog me down?
Tracker Software has a good set of PDF api's that that will allow you to implement the solution you already have in mind. I've used their Image and PDF libraries quite a bit with a lot of success in both VB6 and .NET. Single user licenses are not expensive (depending on how you look at it I guess), and I've found support to be excellent as well.