Hi Laurens

It's pretty easy. You just use the ImageProcessor plugin, which will call the plugin i've written.

If you have an image just add ?width=800 in the image URL (or use GetCropUrl) and you'll get an image of 800 width. If the input is a PDF, the plugin will be called by ImageProcessor. You don't need to do anything else.

Should work flawless

Kind regards Damiaan

If you try the same thing with a image, does it work?

If so, the plug-in is not loaded into ImageProcessor (and we have to find out why).

If not, then imageprocessor is not working for some reason.

The imageprocessor is installed by default right?

In umbraco? Yes it is.

Hey, Damiaan's minion here

try

<img src="@(Umbraco.TypedMedia(@temp.value).Url)?format=jpg&width=500"/>

Maybe razor is having problems with the ?

Did you supply a ghostscript dll as instructed on the github readme?

Just to make sure.

Files that should be present in your bin

• Ghostscript.NET.dll
• ImageProcessor.Plugins.Pdf.dll
• ImageProcessor.dll
• gsdll32.dll or gsdll64.dll

If all those files are in your bin, it should work out of the box without any other configuration.

I will let Damiaan pick this up when he has the time as I am out of ideas. Sorry I couldn't get it to work.

Edit: just out of curiosity, what actual url do you get on the html page when you use <img src="@Umbraco.TypedMedia(@temp.value).GetCropUrl(width:500)"/>

Aha, getting there I believe. Seems I'm receiving this error when I call directly the URL of the PDF with the '?' parameters behind it.

Server Error in '/' Application.
This managed library is running under 32-bit process and requires 32-bit Ghostscript native library installation on this machine! To download proper Ghostscript native library please visit: http://www.ghostscript.com/download/gsdnld.html
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: Ghostscript.NET.GhostscriptLibraryNotInstalledException: This managed library is running under 32-bit process and requires 32-bit Ghostscript native library installation on this machine! To download proper Ghostscript native library please visit: http://www.ghostscript.com/download/gsdnld.html

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[GhostscriptLibraryNotInstalledException: This managed library is running under 32-bit process and requires 32-bit Ghostscript native library installation on this machine! To download proper Ghostscript native library please visit: http://www.ghostscript.com/download/gsdnld.html]
   Ghostscript.NET.GhostscriptVersionInfo.GetLastInstalledVersion(GhostscriptLicense licenseType, GhostscriptLicense licensePriority) +265
   ImageProcessor.Plugins.Pdf.PdfRasterizer..ctor(Int32 xDpi, Int32 yDpi) +83
   ImageProcessor.Plugins.Pdf.PdfFormat.Load(Stream stream) +181
   ImageProcessor.ImageFactory.Load(Stream stream) +97
   ImageProcessor.Web.HttpModules.<ProcessImageAsync>d__34.MoveNext() +2399
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Web.TaskAsyncHelper.EndTask(IAsyncResult ar) +71
   System.Web.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar) +9770477

So I've updated the gsdll32.dll and gsdll64.dll in my /bin folder to be sure it's up to date.

Restarted the IIS pool and still the same error stating it's not installed :/

Any ideas what I might be overlooking?

EDIT: Also to note, I have all the needed DLL's in my /bin folder.

But it's like the gsdll64.dll is not called correctly or can't be found for some reason.

It's maddening :p

So now it's working on my live environment, but I see the following problem.

In the logs I see that the DLL is throwing an exception 0X8007000B. And according different sources its stating that I need to set my IIS pool to 32B.

When I do that, the DLL works, but my homepage stops working!

Logs:

System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
   at GhostscriptSharp.GhostscriptWrapper.CreateAPIInstance(IntPtr& pinstance, IntPtr caller_handle)
   at GhostscriptSharp.GhostscriptWrapper.CallAPI(String[] args)
   at GhostscriptSharp.GhostscriptWrapper.GeneratePageThumb(String inputPath, String outputPath, Int32 page, Int32 width, Int32 height)
   at MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator.Generate(String file)
 2017-04-24 00:53:56,131 [P9416/D2/T42] INFO  MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator - Completed Creating Thumbnail (took 26ms)
 2017-04-24 00:59:56,990 [P9416/D2/T16] INFO  umbraco.BusinessLogic.Log - Log scrubbed.  Removed all items older than 2017-04-23 00:59:56
 2017-04-24 02:55:08,124 [P9416/D2/T39] INFO  MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator - Started Creatning Thumbnail
 2017-04-24 02:55:08,152 [P9416/D2/T39] ERROR MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator - Faled generat pdf thumbnail
System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
   at GhostscriptSharp.GhostscriptWrapper.CreateAPIInstance(IntPtr& pinstance, IntPtr caller_handle)
   at GhostscriptSharp.GhostscriptWrapper.CallAPI(String[] args)
   at GhostscriptSharp.GhostscriptWrapper.GeneratePageThumb(String inputPath, String outputPath, Int32 page, Int32 width, Int32 height)
   at MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator.Generate(String file)
 2017-04-24 02:55:08,152 [P9416/D2/T39] INFO  MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator - Completed Creating Thumbnail (took 27ms)
 2017-04-24 04:59:57,024 [P9416/D2/T16] INFO  umbraco.BusinessLogic.Log - Log scrubbed.  Removed all items older than 2017-04-23 04:59:56
 2017-04-24 08:08:15,220 [P9416/D2/T64] INFO  MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator - Started Creatning Thumbnail
 2017-04-24 08:08:16,110 [P9416/D2/T64] ERROR MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator - Faled generat pdf thumbnail
System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
   at GhostscriptSharp.GhostscriptWrapper.CreateAPIInstance(IntPtr& pinstance, IntPtr caller_handle)
   at GhostscriptSharp.GhostscriptWrapper.CallAPI(String[] args)
   at GhostscriptSharp.GhostscriptWrapper.GeneratePageThumb(String inputPath, String outputPath, Int32 page, Int32 width, Int32 height)
   at MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator.Generate(String file)
 2017-04-24 08:08:16,110 [P9416/D2/T64] INFO  MissingCode.Umbraco.PdfThumbnail.ThumbnailGenerator - Completed Creating Thumbnail (took 890ms)

Then when you look at the media folder it is trying to convert from PDF to JPG I see a few temp PDF files that are filling up the drive.

Which is the exact same issue that I had with Yakov , but this plugin does not fills up the drive as fast as before. With the previous plugin the grow rate was continuous and filled up the drive after like 2 days.

https://our.umbraco.org/projects/backoffice-extensions/pdf-thumbnail/

But we are making progress, the PDFs are all converted to JPG and it shows it nicely. But I wonder where the DLL stores the converted JPG's?

EDIT: Temp PDFs where still being created by the pdf-thumbnail package. Had nothing to do with the DLL from Damiaan.

This should not be happening. The converted images are stored by imageprocessor. Maybe Ghostscript stores temporary folders. I'll look at a website where we deployed the package and see if we have the same behaviour.

The JPG's are stored in Imageprocessor's /App_Data/Cache folder.

Concertning the exception, you are still using the old plugin "MissingCode.Umbraco.PdfThumbnail". You don't need to call the thumbnailGenerator. Everything is handled by ImageProcessor when using our plugin.

In fact, it's a plugin for imageprocessor, allowing imageprocessor to have PDF's as an input format.

Never had an issue like mentioning gsapi_new_instance. I just merged in a pull request and testing it right now. Give me a few hours to give feedback.

Yes indeed. You don't need to install ghostscript anymore.

It feels more like he is now able to call it, and previously it was not.

I'll happely test it :)

Then you can contain in it all pre-reqs for the plugin :)

have the instructions changed on this? where do i get the gsdll32.dll or gsdll64.dll???

please advise and THANKS!

Old thread arises from the ashes ;)

You should be able to download them from here. https://www.nuget.org/packages/GhostScriptSharp/

And should be stored in your \bin folder.

Goodluck!

Do you get an error message? Do you see an output on your page itself?

Also this is what I use on my personal site now.

<ul class="thumbnails" id="image_gallery_files">

@* Go over each mediaID in the list *@
@foreach (var mediaId in mediaIds.Split(','))
{
    var media = Umbraco.TypedMedia(mediaId);

    @* Media var has value *@
    if (media.Children != null && media.Children.Any())
    {
        foreach(var file in media.Children)
        {
            <li>
                <center>

                    <a href="@file.Url" class="ilightbox" target="_blank">
                        <img class="span2" class="img-responsive img-blog" src="@file.Url?Format=jpg&Width=200&Height=200" alt="@String.Format("{0}",Path.GetFileNameWithoutExtension(@file.Name))"/>
                    </a>

                    <br />

                    <a href="@file.Url" download><button type="button" class="btn btn-secondary"><i class="fas fa-download"></i> Download</button></a>
                </center>

                &nbsp;

            </li>

            @* Increment the file counter*@
            fileCount++;

            @* Check if multiple files are present *@
            if(@fileCount > 0)
            {
                multiple += "True";
            }

            else
            {
                multiple += "False";
            }
        }
    }

    @* No media folder was selected *@
    else
    {
        <p>No document folder selected!</p>
    }
}

Where img class="span2" class="img-responsive img-blog" src="@file.Url?Format=jpg&Width=200&Height=200" alt="@String.Format("{0}",Path.GetFileNameWithoutExtension(@file.Name))"/> is the part that uses the PDF previewer.

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