I want to display each page in a PDF document as a thumbnail in an WPF list view as images
Any ideas?
You need a library that can render the PDF files into images for you.
If you can afford a commercial library, take a look at Amyuni PDF Creator .Net, the method IacDocument.ExportToJPeg_Method in particular will do what you need (usual disclaimer applies).
Just for the record, iTextSharp and PDFSharp will not be able to help you on this task, unless your PDF files are composed by raster images only.
Related
I want to create application in .NET, which will generate PDFs. This application should enable any movement of text, which an user will want set in the PDF.
I use in my project library PDFSharp. Could you suggest me how to display a preview of PDF, and how to enable move the one string within page? Do you have any ideas?
Regarding display the PDF, currently I use:
WebBrowser1.Navigate(new System.Uri(#"c:\firstpage.pdf"));
Is this good solution?
Photos from cameras contain a thumbnail and the photo itself. The thumbnail is created and used by the cameras to browse quickly without loading the full image.
I would like to mimic such behavior with C and Gtk+ 2.
Tools such as exiftool or dcraw can extract the thumbnail into a new file. However, I would like to load the thumbnail directly into a GdkPixbuf instead.
If there any function to extract the thumbnail already existing in photo and load it into GdkPixbuf?
There are many ways but not an official™ one.
If you do not want to lose yourself in the EXIF details you can leverage eog (Eye of GNOME): under the wood it is mainly a C library.
Link your app to that library and call eog_thumbnail_load on your EogImage object.
No
The loading of images is via pixbuf loaders so if you have a nef or cr2, you have to provide a loader to handle these types of files
The way I have implemented this is to build my own pixbuf loader and use exiv2 to obtain the embedded preview image (a tif or jpg) and then let the standard pixbuf loaders load that
I am using the Aspose PDF tools and have successfully got it to print the pdf which is great, but ideally I want to be able to add a wpf control to display this as well.
I would have assumed that the PdfViewer class would have something, but I can't tell.
So far I have needed to use a different control MoonPdfPanel which is annoying as I would have preferred 1 tool to do both jobs.
Does anyone know of a control I can use to hook into the aspose?
Thanks
We have developed an HTML5 PDF Editor application using Aspose.Pdf for .NET API which you can use in your application as a PDF Viewer as well. You can get the details and complete source code here. You can use the source code to edit the viewer as per your requirement.
P.S. I am working as social media developer at Aspose.
Well, if you are interesting in viewing the PDF file, you may convert the file to HTML and display it using an IFrame in your application. I have developed a sample application which performs different operations including viewing a PDF file in IFrame. Download it and try it at your end. Another option is that you can convert the PDF file to images and display in Imageviewer in your application (Code is available in the above application).
P.S. I am working as social media developer at Aspose.
Is it possible to connect a highslide gallery to an external database that can load in the image/path/etc as well as the caption/text assoicated with that image into a website. Thereby eliminating the need to house the images, thumbs and html code on the page referencing the images specifically?
Yes, serving the images and captions etc. in a database is standard procedure for web developers working with server based technologies like PHP/MySQL, Node.js or ASP.NET. I won't go in detail here, but the idea is to make the server side language print HTML and JavaScript for the client, for example by printing image tags including the image file path and caption text. To learn about this in detail, you need to know the basics in for example PHP, which you can pick up in online resources on the matter.
Using the 3rd party tapestry-upload component, I can upload a File from the client on the server.
Using the chenillekit's thumbnail component, a can make a thumbnail from an Asset.
How can I convert my File into an Asset in order for the Thumbnail component to provide me the image thumbnail ?
There are a few threads on the mailing list that deal with this. Basically, you need to contribute a custom AssetFactory that reads the image from disk (or the database). You might also look at URIAssetFactory which is part of ChenilleKit itself.
Here are a few links to help:
https://issues.apache.org/jira/browse/TAP5-423
http://www.mail-archive.com/users#tapestry.apache.org/msg33692.html