I've verified that the files can open if saved on the hard drive. I also have made sure that the config.php does not have any blank lines.
If a user has version 7 of Acrobat, everything works fine. If users have a release prior to version 7, then we get the "file is damaged" error.
Has anyone else encountered such errors? How did you resolve? Why isn't the fix part of the core build in Moodle....(It seems like PDF's are a very popular resource).
I've done that and still the problems persist....I clear out my browser cache every time I test.
Here are the first few lines from wordpad:
%PDF-1.3
%âãÏÓ
1 0 obj
<<
/Type /ExtGState
/SA false
/OP false
/HT /Default
>>
endobj
2 0 obj
<<
/Type /Halftone
/HalftoneType 1
/HalftoneName (Default)
/Frequency 60
/Angle 45
/SpotFunction /Round
>>
endobj
4 0 obj
<<
/Type /XObject
/Subtype /Image
/Name /Im1
/Width 3400
/Height 4416
/BitsPerComponent 1
/ColorSpace /DeviceGray
/Length 45737
/Filter /CCITTFaxDecode
/DecodeParms <</K -1 /Columns 3400 /BlackIs1 false>>>>
stream
IMO Moodle code is ok, but your apache configuration is incorrect - gzip compressions is turned on for all browsers and files served by your server which is definitely wrong.
I managed to replicate it on my test server, the problem appeared when I enabled gzip compression for all files. Please tell your server admin to fix the configuration, more info can be found here: http://httpd.apache.org/docs/2.0/mod/mod_deflate.html. Please report here if it helped, thanks
Hi, I am also facing the same problems after migrating site to a new Linux server. I checked the PDF files after downloading, n found them correct bt no PDF and other uploaded files like IMS content packages are not displaying on the moodle site. Also added the line "$CFG->disablebyteserving=true;"
But problem still exist. Please help me to sortout the problems.
apache config file is attached...
Thanks & Regards!
You've been reading a very old thread and the suggestion concerning deflate being the culprit, might be true, but have had no issues similar.
Since you've transferred the site to a Linux server, was the old site Windows? If former server was Windows, did you use the moodle code from Windows or install fresh Moodle code (matching version) from the .tar.gz files. Copying over your config.php file, of course.
In your httpd.conf find this line:
LoadModule deflate_module modules/mod_deflate.so
and comment it out. Put a # character in front.
Check your .htaccess file if you have one for re-write rules related to PDF files.
From /var/www/html/ as root user:
fgrep '.pdf' .htaccess
You may NOT have an .htaccess file and that's ok.
Restart your apache server: /sbin/service httpd restart
Check error logs: tail /var/log/httpd/error_log
For any errors on restart. Try your PDF links.
And a comment about your config ...
Set ServerSignature to off
No sense in giving more information than is needed on 404's.
Also, at the very bottom comment out all the settings you've opened for virtual servers. Doesn't really appear you are running virtuals and they are not needed since you are running moodle from /var/www/html/
Add a # in front of:
NameVirtualHost *:80
DocumentRoot /var/www/html
ServerName 10.32.2.1
Document root is already defined and one doesn't need ServerName to be an IP address. If your firewall allows port 80 Apache (httpd) will respond to any request of a browser to the server's IP address.
'spriit of sharing', Ken
Thank You Sir for your kind reply..I have corrected my httpd.conf now...But problem is not yet solved. I migrated site from windows PC where i developed it using xampp server. I again checked other PDF files and found them damaged..what should i do now..to recover them all again because uploading all the content is going to kill me definitely
I am using the same code and did't found any .htaccess file. The damaged file downloaded from moodle after migration is attached...
Thanks & Regards..
Hi All,
I wonder if anyone has made headway with this issue. I have a Windows 2003 server running a number of moodle instances. I have started to get the same error regarding "cannot open PDF: error file is damaged".
The interesting thing is that this only occurs for my 1.63 instances. When uploading and viewing the same document via a 1.53 site there is no corrupt messages. What is different that could affect the way that this file is sent up to the server with 1.63?? I upgraded from 1.53 site to 1.63.
I have tried Acrobat reader 6.0 and 7.0, uploading the file both sides of the firewall, macs and pcs. File size of the pdf seems irrelevant.
What could I look at with the setting or installs that seems to be damaging or corrupting the pdf. By the way the PDF opens fine when downloaded to the computer and opened by double clicking. So the file itself is unlikely to be damaged. It is the process of opening in Moodle that is the issue.
Windows 2003
MySQL 4.1.16nt
PHP 4..13
Moodle Version: 1.6.3 (2006050530)
Any advice much appreciated.
Kind regards
Steve
this version of adobe acrobat reader doesnt "usually" read non english letters file names. also sometimes it makes troubles with spaces.
please make sure to check file names andput them in numbering or so
