The original post was written in 2018.  I'm writing this in 2020.  But the FTP link points to files in 2015.   Isn't there something more recent?   How about updates?  How can we install update at the same time? ... View more

Peter Grainge wrote: I mean that my personal opinion is that it will be next year rather than this year. There is no commitment to an annual release or indeed any other time period. We only have past experience to go on. I see. I found many mentions on RH 2016.  That's why I thought it's some coming.  OK, thanks. Even if you don't follow each release, it could still pay off as the upgrade price is higher if you have skipped a version. All I am saying is do the arithmetic to decide what is best. Keep in mind that if you skip two versions, there is no upgrade price. I did do the math.  It's not "paying off" as you stated.  All depends on how you skip the version.  But this is off-topic. Thanks anyway. ... View more

Peter Grainge wrote: Adobe do not publish future release dates so we only have past performance to go on. I think the quickest new version release was about twelve months so you should be OK for this year [...deleted] I don't understand what you mean.  You mean the new version will probably be released in 12 months?  Then it wouldn't be RoboHelp 2016 but 2017! Why not think about the subscription option. For regular upgraders I think you will find it makes sense. We don't follow and use every version.  So subscription is not financially advantageous.  ... View more

Anyone knows if there is a PDF 1.3 on-line validator? ... View more

I have just found someone having Adobe Acrobat Pro and tried to open the files on his computer.  The same error! OK, I'm going to write in Acrobat forum in the hope that the case could progress. ... View more

I saw "MVP" next to your name.  I thought you're able to help! That means all this time, nobody from Adobe has ever been in this forum?? ... View more

Test Screen Name wrote: I can see no way to advance without files that can be publicly shared. Sorry. That's really too bad.  Maybe we could do something in between....?  Instead of putting the file to public area, that I most definitely cannot do, what about if I send the file to some software engineers of Adobe and nobody else?  And of course, they have to make sure that once they've found the cause of the problem, they have to promise that the file (and every possible copy of it) will be definitely deleted.  Does this sound good? By the way, I have just tested with Adobe Reader 9.5.0 and 9.5.5 and I still get the same error. ... View more

So, how can we advance in this problem? ... View more

Sorry, I cannot find any non-sensitive file for the moment.  I will get into trouble if I upload any of them. And you're correct: I can't find those strings when I open it in a hex editor.  Is there any utility to let me remove some texts without changing file headers and other properties? For all my invoice files, they are all generated by the same company.  It's "Free Telecom", an ISP and mobile phone company in France.  But not all invoice files have this issue.  This issue only happens recently, and only happens to invoice generated for ISP, but not for mobile phone. Here are some more technical info: If I open the files in PDF-XChange Viewer, I can view some properties. I have PDF Producer:  PDF::API2 0.73 [linux] The following image shows some remaining properties which are too much to type: Hope this helps ... View more

Test Screen Name wrote: Steefan,  I agree with your diagnosis. That file does not meet the suggested criterion. Also PDF version is not an issue, PDF 1.0 is still entirely valid in the latest Reader. Thank you for the diagnosis. We hear from people with this problem but they never seem to get to the point of sharing a file for us to look at. Perhaps you can? You can't email it but you can put it on acrobat.com, your own web site, or another file sharing site. Or if the file came from the web, just post its URL. The only files I remember which can't be opened are invoices which contain sensitive/important information.  So I'm not willing to upload them like this. Let me see if I could change its content to replace sensitive strings to something like "XXXXXXX" without breaking the file's integrity.  Does PDF contain checksum which prevent it from being tampered with? ... View more

Hyena wrote: [deleted] Even so Test Screen Name, what would the solution be?  I did a reg edit, and see HKEY_LOCAL_MACHINE>>SOFTWARE>>ADOBE>>ADOBE READER>>11.0 but beyond that I only see Installer, Language and InstallPath. Hi Hyena, I think you're not alone if in your case.  In several computers of mine, I have NO "Adobe" under HKEY_LOCAL_MACHINE\SOFTWARE You could go to HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\......... and create that "bValidateBytesBeforeHeader" value. ... View more

I wouldn't call "go to HKLM blah blah blah" a fix for everybody either.  But the point is: if a user *does not attempt the fix* and *the software is not working correctly*, what do you think users would do?  If I were they, I would just turn away!  Don't expect me to get an expert and pay him to fix problem like this.  I mean, if I were to pay an "expert" to fix every small problem like this, I'd better buy another software I mean, this bug definitely comes from Adobe Reader.  If the problem were indeed a registry setting, Adobe could have provides a .reg file for basic users or even better, a little .exe file like Microsoft, instead of the pure technical article. Anyway, NO NEED to try the solution suggested by the article. By the way, the same problem PDF file can be opened in Adobe Reader for Android and Quickoffice for Android without problem. ... View more

Hi SumitV, thanks for your reply. I'm quite an IT/tech guy but I still agree with Hyena: the reply provided by SumitV isn't very helpful for other users, besides the fact that the suggested article does not solve my problem. I have opened the problem PDF file in a text file editor but the %PDF header is at byte zero of the file.  Below is a screenshot of the same file open inside a hex editor and you could check that the format is correct according to what is stated in that article and the file SHOULD not have caused the problem: In case you suspect the problem comes from the version (ie 1.3), that's not it either.  I have a lot of other PDF files whose headers are %PDF-1.3 and all of them can be opened without any problem. So, the problem is something else.... ... View more

Nobody cares about this problem?  So disappointing.... ... View more