Debenu Quick PDF Library - PDF SDK Community Forum : Creator, Publisher, ModDate, Createdate http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 01 May 2026 06:38:02 +0000 Tue, 06 Feb 2007 09:21:12 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=623 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Creator, Publisher, ModDate, Createdate : Hi MarianThanks for you reply.I...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2887.html#2887 Author: Darin
Subject: 623
Posted: 06 Feb 07 at 9:21AM

Hi Marian

Thanks for you reply.

I completely understand about the time issue. I suspect there's many other things that are higher prio that a relatively obscure bit like this.

If I'm understanding the first bit, you're saying that the MODDATE handling the way it is now in the source isn't quite right, in that it resets the MODDATE right before save, and what it really needs to do is reset the moddate each time a call is made to the library that does something to change the PDF, and NOT at the point you actually call the SAVE function. I hope I got that right.

If that's what you meant, I completely agree and I can definitely see where that would be more work. But I like that approach even more than my original suggestion.

Thanks for the reply. If I can license the source, I very well may try to throw in a contribution.

Thanks
Darin
]]> Tue, 06 Feb 2007 09:21:12 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2887.html#2887 <![CDATA[Creator, Publisher, ModDate, Createdate : Hi Ingo,You know, I&#039;ve used...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2886.html#2886 Author: Darin
Subject: 623
Posted: 06 Feb 07 at 9:08AM

Hi Ingo,
You know, I've used that trick before, and I completely missed it this time round.

Good point!

I'll do some experimenting and see how it goes.

Thanks for the heads up!

Darin
]]> Tue, 06 Feb 2007 09:08:42 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2886.html#2886 <![CDATA[Creator, Publisher, ModDate, Createdate : Hi Darin!What about a workaround...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2884.html#2884 Author: Ingo
Subject: 623
Posted: 06 Feb 07 at 3:55AM

Hi Darin!
What about a workaround to solve this problem without changing the library source? Nearly all programming languages are offering a function to set the system date of the machine...

Create ...
Unlock ...
LoadFromFile ...
-> save the system date
-> set the system date to the one you want
SaveToFile ... (now ModDate will set YOUR date)
Free
-> set the system date again with the saved date
-> change the file date with the saved date

Only my thoughts in this case ... It should work.

Best regards,
Ingo

T
]]> Tue, 06 Feb 2007 03:55:18 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2884.html#2884 <![CDATA[Creator, Publisher, ModDate, Createdate : Hi Darin, first of all, you should...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2883.html#2883 Author: marian_pascalau
Subject: 623
Posted: 06 Feb 07 at 3:44AM

Hi Darin,  
first of all, you should submit CR/BUGs only over support email address.
second, this is not really a quick change. This is because the creation of PDF files was not my main concern and I myself I am not aware of all dependencies inside the source code.
 
One thing is sure. The removal of this "ModDate date reset" is not 100% propper. It make sense to reset the modification date but not this way. First this change will be done inside program when something was changed inside PDF structure. Then you may set the ModDate as you wanted and on save you get what you need.
 
The second problem is time. You have to accept that at the moment we have other concerns in our priority list. But we may consider your sponsoring to bring some of your needed features direct on our (my) top list. Of course this is optional, otherwise you have to be patient for a while.
 
Best regards, Marian
 
]]> Tue, 06 Feb 2007 03:44:28 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2883.html#2883 <![CDATA[Creator, Publisher, ModDate, Createdate : Hi MarianThanks. i&#039;d figured...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2882.html#2882 Author: Darin
Subject: 623
Posted: 05 Feb 07 at 9:13AM

Hi Marian

Thanks. i'd figured it was something like that. I'd rather not use a "one off" of the source, because I think a change like this would make the mainline more generally usable and act more like it's documented now. Besides that, I don't even have the lic for the source yet, although I'm seriously considering it just to be able to evaluate what's going on inside.

In order to submit a CR, should I just email the comment to support@quickpdf.org?

What's the appropriate way to do that?

I'm thinking this issue in particular would be a very quick change. though there may be some ramifications I'm unaware of.

Thanks again
Darin

]]> Mon, 05 Feb 2007 09:13:30 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2882.html#2882 <![CDATA[Creator, Publisher, ModDate, Createdate : Darin, inside the source code...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2867.html#2867 Author: marian_pascalau
Subject: 623
Posted: 02 Feb 07 at 7:17PM

Darin, inside the source code (class TiSEDQuickPDF) there is a call to
 
FSelDoc.SetInfo('ModDate', GetPDFDateTime);
 
on each call to seve document (SaveToFile; SaveToString). If you believe that this call is not needed (but in reality it make sens to me) and you have license to QuickPDF source code then you should go there and comment out these statements.
 
If you want this change integrated in our sourcecode you have to sumbit a CR and we will see how we will process your request.
 
Best regards to everybody,
Marian
]]> Fri, 02 Feb 2007 19:17:39 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2867.html#2867 <![CDATA[Creator, Publisher, ModDate, Createdate : Hi IngoThanks for the idea. But...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2866.html#2866 Author: Darin
Subject: 623
Posted: 02 Feb 07 at 6:11PM

Hi Ingo

Thanks for the idea. But from what I've seen so far, the moddate is updated to the current date anytime you save the PDF, so whether I copied the pages into a blank PDF or just updated the original PDF, the moddate would seem to end up set to today's date and time.

What I'd really like to do is set the mod date to either nothing at all, or to some static date, say, jan 1, 1900.

I'm going to keep playing with it and see if there's any way around the "automatic moddate update' that seems to happen when you save a pdf, but I kind of doubt there will be...

Still, not the end of the world!

Darin
]]> Fri, 02 Feb 2007 18:11:34 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2866.html#2866 <![CDATA[Creator, Publisher, ModDate, Createdate : Hi Darin!Only an idea...If you...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2865.html#2865 Author: Ingo
Subject: 623
Posted: 02 Feb 07 at 5:52PM

Hi Darin!

Only an idea...
If you want to remove/reset the ModDate why not creating a new empty pdf-document... then you can copy the pages from the older one into this new document with a new ModDate and the old content ;-)

Best regards and good luck!
Ingo

]]> Fri, 02 Feb 2007 17:52:54 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2865.html#2865 <![CDATA[Creator, Publisher, ModDate, Createdate : Ulrich, the problem is that we...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2862.html#2862 Author: marian_pascalau
Subject: 623
Posted: 02 Feb 07 at 1:11PM

Ulrich, the problem is that we have to avoid creating parallel support discussions for test cases when something was not confirmed as usage error inside the forum. 
 
Each problem must be monitored whether we want it or not. If someone has or believes that he has a problem he should send a description to support@quickpdf.org where each available DEV-member has access on (if not he may ask for access). Otherwise, the creator of some function have no chance to explain himself and we may close a thread with an inappropriate answer.
 
Darin, if you believe that your problem is real please (I strongly recommend to) submit your problem to support@quickpdf.org . One more info Darin, the QuickPDF2 coclass is a subclass of QuickPDF. In case that you have problems with one of this type objects you have almoust sure with the second as well.
 
Best regards, Marian
]]> Fri, 02 Feb 2007 13:11:44 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2862.html#2862 <![CDATA[Creator, Publisher, ModDate, Createdate : Hi AllFirst, a HUGE thank you...]]> http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2861.html#2861 Author: Darin
Subject: 623
Posted: 02 Feb 07 at 12:16PM

Hi All
First, a HUGE thank you to everyone that threw in on this issue. I really appreciate it.

I built up a small little test app, tried it and you guys were right, everything got cleaned except the moddate.

Ok. So I started trying to narrow down what was different in my main app vs the test.

In the end, it turned out that I had forgotten about the second pass of my program.

In the first pass, everything worked fine, but in the second pass, I had a conditional that caused the LoadFromFile to get skipped.

So, of course, the end result was that I was saving a file that had never been loaded.

So then, I thought it was odd that even with that being the case, that the Producer, etc fields were being reset to the ISED text.

So I kept digging, and realized that if there is not metadata in the field (for instance if I call GetInformation(5) and get back a blank), I don't even bother calling SETINFORMATION on that field.

And THAT appears to be the rub. If you call GETINFORMATION when no file has been loaded, you'll get back a blank string, but if you save the file WITHOUT calling SETINFORMATION, the file ends up with the ISED creator/producer names.


So in summary, I don't believe there's really any probs with iSed, other than the setting of the MODDATE. One might argue that if you call getinformation, and then save the pdf, whatever was returned by getinfo should get saved, but nobody would intentionally use the library like that, so I'm not concerned about that issue.


About the MODDATE issue, what is the proper way to submit an issue like that? Should I email it to support@quickpdf.org?

Again, I'm not sure it's really a bug per se, but it does seem like it's not operating as intuitively as it seems it should.


Thanks again for everyone's help with this

Darin


]]> Fri, 02 Feb 2007 12:16:33 +0000 http://www.quickpdf.org/forum/creator-publisher-moddate-createdate_topic623_post2861.html#2861