Convert PDF To TIFF In-memory
Jun 21, 2012
I can use to convert several thousand PDFs to TIFFs. Free would be great but willing to pay if the cost is within reason.One requirement that many of the tools I have researched seem to miss is that I need to be able to do this in memory.I am working with PDFs that are stored as binary in a SQL database so through SSIS, I would like to pull that binary, convert to TIFF, then send it off to a webservice I will be working with via stream. Unfortunately, it seems that most utilities I have looked into expect the pdf to be on the file system and I would definitely like to avoid writing a temp file to disk to do this conversion. For me that ruled out GhostScript and pretty much anything that's based on it.Also, the PDFs I am working with are rather old (v1.3) so the assembly should be rather forgiving/flexible (PDFFocus errors out on all my PDFs but works fine with newer ones).Based on posts from StackOverflow, it seems like Atalasoft or PDF4NET might work but both are a little too pricey for me so I am looking for some additional suggestions. Given that this process will be embedded in a script task in SSIS 2008, this will have to be .NET.
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Jan 23, 2009
I'm trying to convert a .bmp into a TIFF. Here's my attempt:
Bitmap bmp = new Bitmap("C:Documents and SettingsAdministratorDesktopDoc Folder\_f.bmp")
bmp.Save("C:Documents and SettingsAdministratorDesktopDoc Folder\_f.tif", ImageFormat.Tiff)
It doesn't work. Debug feedback:
Name 'bmp' is not declared. (BC30451)
Method arguments must be enclosed in parentheses. (BC30800)
'Bitmap' is a type and cannot be used as an expression. (BC30108)
[code]....
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Jul 31, 2008
convert pdf to multipage tiff?
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Mar 8, 2012
I am writting a VB.Net application. I need to be able to convert either a Word or PDF file to TIF format.
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Sep 8, 2010
can't seem to find any code nor an explanation on how the file types differ (Technically).
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Mar 1, 2010
I must to convert a multipage tiff in jpg. When i have a jpg file i can put into a sql table and make a report from cristal report. I had write a code to write file (in blob field) so i need a exaple code to SPLIT multipage tiff.
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Aug 16, 2007
I need to convert my gif to tiff for ocr recognition with MODI.
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Jan 13, 2011
I've been working on a project that converts several file formats to a PDF in VB.NET/C#. The specific files are DOC, TXT, JPG, TIFF, HTML.
Actually I already have a solution for DOC/TXT to PDF using Bullzip PDF Printer by sending the files to the PDF Printer using VB.NET. However, each time it converts a file, MS Word opens and then closes once the file is sent to the printer. It really slows down the process.
As for TIFF to PDF, I haven't found a solution for it at this time.
I require SDKs or Commandline tools and not PDF convertion applications, since I need to integrate this function in my program. I prefer free or open source SDKs but commercial ones are accepted as well.
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Jul 22, 2010
I need to convert many separate .tiff or .mdi files scanned invoices to .pdf but, I need to retrieve the invoice number from each file and rename each file with the invoice number. I am running VS 2005, and have looked at Itextsharp,hp document imaging, simple ocr, aquaforest, adobe sdk. The problem with all, is either compatibility or cost. I would like to avoid developing an application that enters FindWindow Lib "user32" press 'OK' to use demo ocr software.
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Oct 10, 2009
Is there any way to convert word document to tiff programatically without installing word application.
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Aug 10, 2009
I have built a simple image viewer in .NET and have the requirement to display multi-frame TIFF images in the browser. Presently, I have a (ashx) handler setup to stream back JPEGs that are co-mingled in the same database as the multi-frame TIFF's and it's worth mentioning that this handler will also return the first frame of the TIFF file in its current state. In the VB.NET code below (part of the handler) I am able to identify if a TIFF file has multiple frames and I started attempting to stitch the frames together but have not had any success yet. Has anyone returned multi-frame TIFF's using a similar approach? Note: I used the How to open a multi-frame TIFF image as a reference when developing the code below.
context.Response.Cache.SetCacheability(HttpCacheability.NoCache)
context.Response.Cache.SetNoStore()
context.Response.Cache.SetExpires(DateTime.MinValue)
[code].....
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Dec 29, 2011
prints out the tiff tags associated with a tiff file?
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Jun 5, 2011
Im looking for a class or code in VB.NET that can convert a black and white image in JPEG format to a grayscale TIFF format.
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Feb 2, 2010
Program to convert binary pdf file to tiff file in VB.NET..?? We can use third party tools also..???
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Jul 27, 2010
I am using IonicZip to compress video files and store in a blob field. I have the zip file created just need to convert it to a byte array. How is this done without writing to the harddrive?
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Nov 5, 2009
In VB 2005, I am calling a C++ DLL function that returns the address in memory and size in bytes of a jpeg image. How can I load that jpeg image directly from memory into a picture box in my VB form? I cannot afford to save it to disk first.
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May 22, 2007
Im getting a problem with one of my programs I have made in visual basic.NET where it gives me a memory error when i debug the program in the IDE. the exact error is this: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt". My program basically has a few forms with text fields on that get their text values from an access database on the same hard drive. Im wondering if im doing something wrong because my program just seems to eat up memory whenever it does anything. For example I have one form that has a combobox on it and when you change the drop down list selection it retreives a few strings from the database and puts them into the relevant text boxes, if you keep changing the selection then the memory usage (in task manager) just keeps going up and up. occasionally I get the error mentioned above when debugging but in my built version of the program it throws an exception everytime the memory usage gets past 49K.
Also I noticed when debugging in the "immediate window" frame I get the following message often:A first chance exception of type 'System. Invalid OperationException' occurred in System.Data.dll...Do I need to somehow be "releasing" the memory that is used to gather data once it becomes redundant?
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Nov 24, 2011
I am using the following code
This error occurs :
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Public Class FormRegEnumValue
[CODE]......................
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Feb 1, 2009
QuoteSystem.AccessViolationException was unhandled Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Source="System.Windows.Forms"
Im designing a web browser and i continue to receive this error after going to about 3 websites it crashes with that error.
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Jan 20, 2010
I have a BackgroundWorker object that I instantiated to perform a DB process on a background thread ansynchronously. I have event handlers for DoWork and RunWorkerCompleted. I can tell that the BackgroundWorker is disposing of itself because I added a message box into the Disposed event handler.Is it necessary to detach the event handlers to ensure that the memory is cleaned up and that there are not memory leaks?
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Apr 17, 2011
I've noticed that every time I start a new thread in my program, the memory usage jumps about 1000k and it never goes back down. I have ensured that the thread is no longer running, and only one instance of my worker thread is ever running at a time. I am using ThreadPool.QueueUserWorkItem and ASyncOperation to get stuff done. The program starts using a Sub Main in a module that uses STAThread; I read that using STAThread instead of MTAThread makes it impossible for the Garbage Collector to get in and consider objects for garbage collection. However, when I change the STAThread to an MTAThread, the WebBrowser control in my frmMain cannot be instantiated.
I get this exception:
Code: An unhandled exception of type 'System.Threading.ThreadStateException' occurred in System.Windows.Forms.dll
Additional information: ActiveX control '8856f961-340a-11d0-a96b-00c04fd705a2' cannot be instantiated because the current thread is not in a single-threaded apartment. I do threading with the WebBrowser control, so will using MTAThread fix my problem? If so, how should I partition my code so that the WebBrowser control won't be affected by the above exception? I call the thread repeatedly with a timer (although only one instance ever runs at a time), and my program's memory usage starts at about 5000k and can jump to 300,000k+ depending on many times the thread needs to be called.
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May 27, 2009
I cannot use Visual Basic 2008 at all. When I go to "new project" and choose "Windows Form Application" I get this error.I have tried multiple uninstall/reinstall with no result.A microsoft reply to this suggested that I needed: " .NET Framework 2.0 Service Pack 1 " I checked, and I did not have the .netframework 2.0 service Pack 1.
When I tried to download and install the above from Microsoft.com, the istaller said that "it was not allowsed" and I was not able to install the service pack 1.
I tried Uninstalling net framework 3.5, 3.0, 2.0 and then reinstalling .netframework 2.0 sevice pack 1; then reinstalling Visual basic 2008 express edition. At the reinstall of Visual basic 2008, .netframework 2.0 sevice pack 1 is unistalled by .net framework service pack 2.When I check the foruims for simiar problems, the formus are mostly for Visual basic 5.0, or other programs that I do not have.
Here is the programs I have installed:
Operating system: Windows XP
Microsoft .net framework 1.1
Microsoft .NET framwork 1.1 Hotfix(KB928366)
Microsoft .Net Framework 2.0 Service Pack 2
[code]....
All the security updates and hotfixes for Widows XP.
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Jan 11, 2012
The follow code can be called about 6K times on the server it is run on then gets a out of memory error in the last catch statement. I don't see what is wrong with the code, it works well up until the out of memory..
Public Function AddUserToGroup(ByVal sSamAccountName As String, ByVal sGroupName As String) As Boolean
Try
Dim returnStatus As Boolean = True[code]......
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Feb 9, 2011
I have two forms, Form1 and Form2. Form2 has a button to show OpenFileDialog. I call Form2 from Form1 by a button. My startUp Form is Form1. When i start debugging, i press my Form1's button to show my Form2, it shows, but when i click On Form2's Button to show OpenFileDialog it is giving me exception that
"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
When i set my startup Form to Form2 and click Form2's Button to show OpenFileDialog then it shows!
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Mar 22, 2011
I have created a simple database programme in VB2010 Express. There is one table called stock_main_table and one 'child' table called Stock_issue_table. The main part essentailly holds the part number and the issue makes a record of each time that part is used. Its a one to many type arrangement.In the main table I have a PRI key called ID_Number and in the child I have a field called 'control'. The control has a relationship with the PRI key in the main table. So each time you create a new line in the child datagrid you retain the same number for that record. All standard simple stuff.
When I run the programme the main table comes up OK and the datagrid for the child comes up OK. If I add a record, I can add plenty of children to it no problem. The records all save OK. You can amend a record as well without an issue. The trouble comes as soon as you DELETE a record and then hit save. The DELETE seems to work and the records (parent and child) all disappear, but as soon as you try to save you get a The DELETE statement conflicted with the REFERENCE constraint error. I have tried and tried to fix this but can't.This is the full text of the exception, if anyone needs anything else then please just ask and I will post it. There is no code with this other than what is created when the dataset is dragged onto the form
[code]...
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Jun 30, 2010
Well the title says it all, i have bin trying to find an idea or a way to do this but i am stuck so maybe i can get some feedback with this.
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Dec 24, 2011
how to split tiff multipage in vb.net?
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Dec 8, 2009
i read the pdf file using following coding how to read the tiff file i tried tiff file not working
//
Dim fileStream As FileStream = New FileStream(uploadfile, FileMode.Open, FileAccess.Read)
Dim length As Long = postHeaderBytes.Length + fileStream.Length +
[Code]......
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Apr 15, 2010
i need to split the pdf pages as png images , is there any vb.net code snipped available to do the same.
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Nov 9, 2009
I need a sample web application to view documents such as Tiff, PDF files.
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