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• Best tool to check and ensure PDF/A compatibility under Linux

  - by Sven Lilienthal

  I am working on an online portal, where researchers can upload their research papers. One requirement is, that all PDFs are stored in PDF/A-format. As I can't rely on the users to generate PDF/A conforming documents, I need a tool to check and convert standard PDFs into PDF/A format. What is the best tool you know of? Price Quality Speed Available APIs Open-source tools would be prefered, but a search revealed none. iText can create PDF/a, but converting isn't easy to do, as you have to read every page and copy it to a new document, losing all bookmarks and annotations in this process. (At least as far as I know, if you know of an easy solution, let me know). APIs should be available for either PHP, Java or a command-line-tool should be provided. Please do not list either GUI-only or Online-only solutions.

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• Access Database connect C# local director

  - by Bomboe Cristian

  I want my connection to the database to be available all the time, so if i move the folder with the project, to an other computer, the connection to be made automaticaly. So, how can i change this connection: this.oleDbConnection1.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\"C:\\Documents and Settings\\Cristi\\Do" + "cuments\\Visual Studio 2008\\Projects\\WindowsApplication3\\bd1.mdb\""; ??? It should read the project directory or something. I don't know. Any ideas? Thank You!

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• Why do C# automatic properties not support default values like VB 2010?

  - by Rob van Groenewoud

  Looking at the new VB 2010 features, I stumbled upon support for Auto-Implemented Properties. Since I'm working with C#, this seemed quite familiar, but I noticed that VB did add a feature I would love to have in C#: setting a arbitrary default value for the auto-implemented property: I really like the clean usage of auto-properties in C#. This would save us the effort of introducing a backing field and hooking it up to the property everytime we simply need a default value, thereby cluttering up the code unnecessarily. I was wondering why this wasn't introduced in C# as well? What could be the rationale for not doing this? Is a syntax discussion going on, or are there technical limitations to implementing this?

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• How do I easily change hardcoded links to a file in Excel?

  - by phan

  I have a project where I maintain a list of all my students and their information in an Excel file labeled "BigList.xlsx". Then, I have about 40-50 other separate ancillary excel files that link to BigList by using vLookup. For example, in cell A1 of an ancillary file you might see a formula that looks like this: =Vlookup(B3, 'c:\documents and settings\user\desktop[BigList.xlsx]Sheet1'!$a$1:$b$10000,2,false). The vlookup link above references BigList.xlsx. However, I just realized that I need to change that file name to something else, like MasterDatabase.xlsm (notice the different extension). Is there an easy way to do this without having to manually go through all 40-50 files and doing a find & replace? I think the basic idea is to change a hardcoded link into a dynamic one where I can change the filename of BigList.xlsx anytime, and not have to go back through all 40-50 files to update their links.

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• understanding this regex

  - by DarthVader

  I m trying to understand what the following does. ^([^=]+)(?:(?:\\=)(.+))?$ Any ideas? This is being used here. Obviously it s command line parser but i m trying to understand the syntax so i can actually run the program. This is from commandline-jmxclient , they have no documents on setting JMX properties but in their source code, there is such an option, so i just want to understand how i can invoke that method. Matcher m = Client.CMD_LINE_ARGS_PATTERN.matcher(command); if ((m == null) || (!m.matches())) { throw new ParseException("Failed parse of " + command, 0); } this.cmd = m.group(1); if ((m.group(2) != null) && (m.group(2).length() > 0)) this.args = m.group(2).split(","); else this.args = null;

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• Can I use Catalyst to display images or graphs?

  - by Octopus

  I have simple Perl/CGI scripts based web server which is mainly used to display graphs and images. I am looking to make it more technical and come to know about Catalyst. I have installed all the required Perl modules on my test platform and created an application called myweb. Also, I am going through the Catalyst documents to reach my goal but nothing helpful yet. Is Catalyst helpful to display images/graphs on web? How can I use my existing CGI/Perl scritps with Catalyst? Any example would be really appreciated.

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• Right recursive grammar or left recursive?

  - by user2485710

  I have little to no knowledge of what I'm about to ask, so I would like a suggestion based on the level of skills required to implemented a parser for the given grammar ( since I'm a beginner in this kind of formal approach to parsers and languages ). Just by going back of a couple of years, this situation reminds me a little of Pascal grammar vs C/C++ grammar, this left vs right stuff. But I'm not going to do any of that, my purpose is to implement a simple parser for a markup language for documents like Markdown. So considering that I'm starting with a markup language in mind, I want to keep things simple, which is the easiest one to handle between this 2 options and why . Another kind of grammar could be an easier option for me ? If yes which one do you suggest ?

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• How do I use TrueType fonts with LaTeX

  - by harper

  I need to use a font family in my LaTeX documents, that is available as 18 .TTF (TrueTypeFont) files. Where do I have to copy the files in my MiKTeX 2.8 installation? How Do I make the fonts to available for LaTeX? I usually use pdfLaTeX. I read in Truetype-Fonts in LaTeX that TTF fonts are available without creating all the .TFM files. What is necessary for this case? Can I install the fonts in the local-texfm directory? I would like to isolate the system installation and my manually added stuff. Probably it would be easier to copy this font family on another installation.

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• Is it possible to remember the filename from a fileupload field and then later launch that file via

  - by Pieter Breed

  I have a HTML file upload field from which I'm reading the file name of the file that the user specifies. The actual contents of the file is never uploaded. At a later stage, is it possible to construct a link using this file name information so that if the user clicks on this link, the original file is launched into a new browser window? If not, what are the reason for disallowing this behaviour? The purpose of such a feature is to store links to documents that are available on a mapped local drive or a network share.

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• newbie: Rails on remote Apache server not displaying index.html.erb

  - by paracaudex

  I played around with Rails on my laptop (running Linux + Apache + MySQL) and had no trouble getting the Getting Started with Rails tutorial to work locally. Now I'm trying the same thing at work on a remote Mac OS X + Apache server, and things aren't quite so rosy. I typed rails blog -d mysql to create a directory called blog in /Library/WebServer/Documents/mydirectory. The trouble is, if I go to server.com/mydirectory/public, I get the public/index.html in my browser. But, I don't get this file if I go to server.com/mydirectory/. Instead, I get a 403 error. Also, when I: script/generate controller home index to create: app/views/home/index.html.erb I am unable to view this file, whether I go to server.com/mydirectory/home/index, or if I add a new line (map.root :controller => "home") to config/routes.rb and go to server.com/mydirectory. Am I missing something really obvious about Apache and Rails?

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• Why isn't Hadoop implemented using MPI?

  - by artif

  Correct me if I'm wrong, but my understanding is that Hadoop does not use MPI for communication between different nodes. What are the technical reasons for this? I could hazard a few guesses, but I do not know enough of how MPI is implemented "under the hood" to know whether or not I'm right. Come to think of it, I'm not entirely familiar with Hadoop's internals either. I understand the framework at a conceptual level (map/combine/shuffle/reduce and how that works at a high level) but I don't know the nitty gritty implementation details. I've always assumed Hadoop was transmitting serialized data structures (perhaps GPBs) over a TCP connection, eg during the shuffle phase. Let me know if that's not true.

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• How do I catch generic fault exceptions in Fitnesse?

  - by Dan Ryan

  Previously within my Fitnesse fixture I was specifying an expected WCF exception using: exception[FaultException] Since then I have converted the WCF service to return a strongly typed FaultContract. I am now getting the following failure message: exception[FaultException`1: "A file with the name DMS Documents/testFileWord.doc already exists. It was last modified by SHAREPOINT\system on 09 Mar 2010 15:36:14 -0000."] This is not unexpected but how do I check for strongly typed fault exceptions? Please note I cannot include the fault message as part of the check as it contains a date which changes (I check this separately).

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• Excel 2010 Access to path is denied temp

  - by Chris Anderson

  I am using excel data reader to read data from an excel file. FileStream stream = File.Open(filePath, FileMode.Open, FileAccess.Read); //1. Reading from a binary Excel file ('97-2003 format; *.xls) IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(stream); //2. Reading from a OpenXml Excel file (2007 format; *.xlsx) IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream); http://exceldatareader.codeplex.com/ This reads excel 1997-2003 format and excel 2007 format on my local machine and when we move it to our test server. However, when moved to production, it works for excel 97-2003 files, but when I try to read 2007 files I receive the following error: Access to the path 'C:\Documents and Settings\PORTALS03\ASPNET\LOCALS~1\Temp\TMP_Z129388041687919815' is denied. How is it possible that the 97-2003 excel file can be read but the 2007 files throw access is denied?

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• Consolidate the same image used multiple times in a PDF.

  - by Jack

  I am generating PDF documents using DevExpress XtraReports. I am using the same image over and over (in rows of status lights). The PDF generated seems to duplicate the image definition for each image included. I would prefer if it included the image once and referenced it wherever it needed another copy - this would drastically reduce the size of my PDF docs. Is there any way to achieve this using DevExpress or even post processed via a third party application. Any help is appreciated.

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• VB.NET - ASP.NET - MS-Access - SQL Statement

  - by Brian

  I have a button which when pressed, sets the user's rights in the db. (If Administrator UserTypeID is set to '2' and if Customer it is set to '1'). However when I run the below code, everything remains the same. I think it's from the SQL statement but I;m not sure. Can anyone help please? Protected Sub btnSetUser_Click(sender As Object, e As System.EventArgs) Handles btnSetUser.Click Dim conn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Users\Brian\Documents\Visual Studio 2010\WebSites\WebSite3\db.mdb;") Dim cmd As OleDbCommand = New OleDbCommand("UPDATE [User] SET [UserTypeID] WHERE Username=?", conn) conn.Open() cmd.Parameters.AddWithValue("@Username", txtUser.Text) If ddUserType.SelectedItem.Text = "Administrator" Then cmd.Parameters.AddWithValue("@UserTypeID", "2") cmd.ExecuteNonQuery() lblSetUser.Text = txtUser.Text + "was set to Administrator." ElseIf ddUserType.SelectedItem.Text = "Customer" Then cmd.Parameters.AddWithValue("@UserTypeID", "1") cmd.ExecuteNonQuery() lblSetUser.Text = txtUser.Text + "was set to Customer." End If conn.Close() End Sub End Class

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• render HTML (convert to bitmap)

  - by MK

  Can somebody recommend the best (and preferably portable) way to render HTML documents onto a bitmap? As far as I understand my main 2 options are WebKit and Gecko, but I wasn't able to find a good starting point on how to do it. When I last tried doing this 5 years ago, I ended up using Gecko to send the document to a printer, which is not really what I need. I need rendering to a in-memory bitmap. To clarify: server side, no Java, no .NET, batch processing, performance, not interactive, no Javascript.

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• Sugar CRM integration with Java - How to add relationship

  - by Arun P Johny

  Hi, I'm trying to integrate Sugar CRM with one of my projects. I'm using Apache Axis as my SOAP client. I've created the Sugar CRM client Stub classes using Apache Axis. I'm able to login and add Leads, Opportunities, Accounts and Contacts. But I'm unable to add a relation ship between my Account and Opportunity. I've found following method in the SugarsoapPortType port.set_relationship(session, module_name, module_id, link_field_name, related_ids, name_value_list, delete) but I cannot understand the different parameters required by this method. Most of the online documents suggests a simple way as given below $result = $client->call('set_relationship',array("session"=>$session _id,array("module1"=>"Emails","module1_id"=>"<module1_id>","module2"=>"Accounts","module2_id"=> "<module2_id>"))); how can I achieve this using Java Thanks

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• Developing ebooks- software?

  - by Mark Mayo

  I've written a few documents for friends or blogs on software testing, job hunting and android development. I've been toying with the idea of producing some programming-related ebooks. However, developing these in Word or OpenOffice seems too amateurish compared to some of the fantastically produced books out there. I'm proficient in LaTeX but have never seen it used to produce ... 'marketable' works - just technical papers, maths, etc - which is great for code but not for distribution. Has anyone seen any good (preferably free / open source) tool or software for developing/compiling professional-looking marketable ebooks (probably to .pdf or .exe format - but I can take care of that part if need be)? And more importantly, ones that are easy to use to format any code samples or snippets that I may choose to include. Much appreciated.

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• Iphone video subtitles programmatic selection

  - by Marek

  I have some videos (mp4) with multiple language subtitles that can be read by an iphone. Users can select to view the subtitle and the language from the default iphone button in the video ui. I would like to be able to set a defalut programmatically, so that, for instance, an user can select a language just one time in the main screen and, from then on, all the videos will have that language subtitles on by default. I can't find anything in the official documentation. I tought about some workarounds like renaming srt files but i don't think it's possible witouht copying all the video files in the user documents dir (not an option).

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• I cannot connect to SQL Server Express using VB.NET

  - by konin

  Can someone tell me what I am missing? I am using this connection string to connect to my database and still it won't connect: Dim str As String = "Provider = .NET Framework Data Provider for SQL Server; Data Source=C:\Users\konin\Documents\UHMS\bin\Debug\UHMS.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True" This is the process I used to get the data source: right-click the database select properties and click select data source I hope I am clear enough. Thanks for reading. Edit: Error Message is as follows: unable to connect to database please contact administrator

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• document directory problem?

  - by senthilmuthu

  When i write Data(53MB ) to Document directory ,the data is not written when i check directly through application support path.i coded like this, - (BOOL)writeApplicationData:(NSData *)data toFile:(NSString *)fileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; if (!documentsDirectory) { NSLog(@"Documents directory not found!"); return NO; } NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; return ([data writeToFile:appFile atomically:YES]); } it works fine, but when i read the data using follwing code, the data is null, anyhelp pls? - (NSData *)applicationDataFromFile:(NSString *)fileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; NSData *myData = [[[NSData alloc] initWithContentsOfFile:appFile] autorelease]; return myData; }

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• Modeling software for network serialization protocol design

  - by Aurélien Vallée

  Hello, I am currently designing a low level network serialization protocol (in fact, a refinement of an existing protocol). As the work progress, pen and paper documents start to show their limits: i have tons of papers, new and outdated merged together, etc... And i can't show anything to anyone since i describe the protocol using my own notation (a mix of flow chart & C structures). I need a software that would help me to design a network protocol. I should be able to create structures, fields, their sizes, their layout, etc... and the software would generate some nice UMLish diagrams.

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• Problems with XAML WPF 4.0 Editor in VS2010

  - by RTPeat

  Wondering if anybody else has found some very odd behaviour with the XAML/WPF 4 editor in VS2010. This only occurs if the project is using .NET 4. Whenever I tried to open a XAML document for editing, the window would appear to open for a split second and then vanish, but VS2010 would still list the window as open. The fault was eventually traced to having the "Reuse current document window, if saved" option under "Documents" in the "Environment" options checked. Once this was unchecked XAML 4 files opened as expected. As I said, this only appears to occur on projects targeted at .NET Framework 4 - those targeted at 3.5 worked without a problem, and the "Reuse current document window, if saved" appears to work fine on other files.

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• Unable to install Maven: "JAVA_HOME is set to an invalid directory"

  - by hello_world_infinity

  I followed the Maven tutorial to the letter but I still can't get Maven installed. When I run the following in command prompt: E:\Documents and Settings\zach>mvn --version I get: 'mvn' is not recognized as an internal or external command, operable program or batch file. I navigated to the maven install folder and ran mvn --version and got: E:\java resources\apache-maven-2.2.0\bin>mvn --version ERROR: JAVA_HOME is set to an invalid directory. JAVA_HOME = "E:\Sun\SDK\jdk\bin" Please set the JAVA_HOME variable in your environment to match the location of your Java installation but when I run java -version I get: java version "1.6.0_14" Java(TM) SE Runtime Environment (build 1.6.0_14-b08) Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode) So I do have Java installed. Anyone know what the problem is?

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• Can DBRefs contain additional fields?

  - by Soviut

  I've encountered several situations when using MongoDB that require the use of DBRefs. However, I'd also like to cache some fields from the referenced document in the DBRef itself. {$ref:'user', $id:'10285102912A', username:'Soviut'} For example, I may want to have the username available even though the user document is referenced. This would provide me all the benefits of a single document approach; Faster querying and eliminating the need to do manual dereferencing in my code. While at the same time allowing me to use references where they make sense. The idea being that when the referenced document is updated (a user changes their name, for example) my business layer can automatically update all the documents that reference it. Ultimately, I'm wondering if it's considered good form to store additional fields on my DBRefs? Will it break anything? Will I lose my data each time a reference is rewritten? Will drivers like pymongo support it?

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