What is wrong in my FDF and PDF file

Posted on 2013-01-09
Last Modified: 2013-02-19
I have a FDF and a PDF file that seems to be bad. In our Java based program that uses a PDF view from Qoppa. The sheet however contains no text.

Is there a way for me to find out if anything is broken in any of the files and in that case what is broken?
Question by:mdoland
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 38761632
There is no simple PDF validator, you could try different PDF consuming applications to see if you can get any meaningful error messages, but without a good understanding of the PDF file format, you would probably not be able to make much use of such errors. If you have access to Adobe Acrobat Pro, you could use the preflight tool to do a syntax check, but that would not work on the FDF file.
Can you attach the files to this question? I could take a look for you.

Author Comment

ID: 38826369
Thanks that would be great!. I have switched out sensitive info from the FDF-file, but it should be equivalent.
LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 38828318
This wont work: A PDF file is not a text file, and you cannot edit it in a text editor. Your PDF file has a .txt extension, which suggests that that's what you tried to do, and the error message when I try to open the file as a PDF also points to that. In order to debug this problem, I would need a valid PDF file.
Instantly Create Instructional Tutorials

Contextual Guidance at the moment of need helps your employees adopt to new software or processes instantly. Boost knowledge retention and employee engagement step-by-step with one easy solution.


Author Comment

ID: 38839152
Don't let the file extension trick you. The only thing I have edited is the information in the FDF and it seems to be mostly pritable characters. The fact that it is .txt is that it has been fetched from a database. It of course could be an issue with conversions from how it is stored. Could you see if it looks ok if you change the extension of the file?

Author Comment

ID: 38839161
The error we have on it is that this file from 2007 cannot be displayed in a jPDFViewer from Qoppa.
LVL 44

Accepted Solution

Karl Heinz Kremer earned 500 total points
ID: 38839171
Is the file you provided the PDF file that you are trying to display? If so, then the file is corrupt, and that's the reason it does not work in JPDFViewer. Ive changed the file extension, and actually looked into the file. The file is corrupt. PDF is a binary file format, you need to store it as a BLOB in a database. If anything in your processing has treated it as a text file, that may be where the corruption occurred.

Author Closing Comment

ID: 38905242
Thanks alot for the help. I am on the way of solving it in another way now.

Featured Post

Salesforce Has Never Been Easier

Improve and reinforce salesforce training & adoption using WalkMe's digital adoption platform. Start saving on costly employee training by creating fast intuitive Walk-Thrus for Salesforce. Claim your Free Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The Adobe PDF proprietary file format is recognized as secure and formulated. But these PDF files are also prone to corruption and any external threat like virus attacks, improper storage can hit PDF file integrity.This type of damages can make cruc…
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers will learn one way to get user input in Java. Introduce the Scanner object: Declare the variable that stores the user input: An example prompting the user for input: Methods you need to invoke in order to properly get  user input:
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question