Title: Generated pdf's from ticket cannot be opened
Last modified: August 30, 2016

---

# Generated pdf's from ticket cannot be opened

 *  Resolved [rgrentzius](https://wordpress.org/support/users/rgrentzius-1/)
 * (@rgrentzius-1)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/)
 * Dear support,
 * First of all complements for the great plugin!
 * We are facing one small issue which I hope you can help us wit;, the pdf’s which
   are generated with the link on the tickets cannot be opened. We’ve tries multiple
   pdf readers, but all give an error that the file is damaged or the coding is 
   incorrect. We are using the latest release for the plugin version 2.04.
 * Looking forward to your reply, thanks in advance for all help!
 * [https://wordpress.org/plugins/opentickets-community-edition/](https://wordpress.org/plugins/opentickets-community-edition/)

Viewing 13 replies - 1 through 13 (of 13 total)

 *  Plugin Author [loushou](https://wordpress.org/support/users/loushou/)
 * (@loushou)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897328)
 * Hey [@rgrentzius-1](https://wordpress.org/support/users/rgrentzius-1/),
 * Thanks for the compliment! It is always nice to hear appreciation for our hard
   work.
 * The PDF has been a recent focus. In fact, the last 2 releases have been specifically
   to repair a couple reported PDF related issues. It sounds like we need another
   pass to try and figure out why you are having an issue opening them.
 * Some extra information will give me the edge I need to replicating the problem,
   which will then allow me to create a solution for it. To that end, could you 
   please answer these basic questions about what you have tried so far:
 * – What browser are you using?
    – What is the Operating System you are using (
   windows 10, mac osx, linux)? – You said that multiple readers cannot open it,
   which ones specifically have you tried, so I can replicate the problem locally
   and come up with a solution? – When you ran the tests, were you a logged in user
   or a logged out user? What permission level did the user have (admin account,
   customer, etc)? – On your WordPress install, do you have ‘Debug Mode’ enabled
   or disabled (usually checking your wp-config.php for WP_DEBUG will give you this
   answer)?
 * Thanks in advance, and we will track this down and resolve it,
    Loushou
 *  Thread Starter [rgrentzius](https://wordpress.org/support/users/rgrentzius-1/)
 * (@rgrentzius-1)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897363)
 * Hi Loushou,
 * Thanks for the quick response! Please find the answers to your questions below.
   If it helps I can make an account for you, so you can logon to our website? Would
   it help to forward you an e-mail with a link to a ticket?
 * What browser are you using?
    >Tested on FireFox and Chrome.
 * What is the Operating System you are using (windows 10, mac osx, linux)?
    >Mostly
   on Windows 10, but also tested on 8.1.
 * You said that multiple readers cannot open it, which ones specifically have you
   tried, so I can replicate the problem locally and come up with a solution?
    >
   Could not open de pdf in Adobe Reader, Nitro and in browser viewers. Also I wasn’t
   able to open de pdf in Photoshop.
 * When you ran the tests, were you a logged in user or a logged out user? What 
   permission level did the user have (admin account, customer, etc)?
    > Both tested,
   when I was logged on I’ve had an admin account.
 * On your WordPress install, do you have ‘Debug Mode’ enabled or disabled (usually
   checking your wp-config.php for WP_DEBUG will give you this answer)?
    > I’ve 
   checked and it’s currently set to false.
 * Thank in advance!
 *  [netffandersadmin](https://wordpress.org/support/users/netffandersadmin/)
 * (@netffandersadmin)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897386)
 * Hi there,
    Same problem here. We sell tickets for events and all works well until
   you are on the page that shows your tickets and you try to download to pdf. It
   downloads but it can’t be opened. I’ve included the link I received by email 
   so you can take a look at it. Hope you can sole this.[](http://www.netffandersgroep.nl/events/order-tickets/wc_order_56dc2d32355d4/?n=d4f45e11e3b78c7fb0ed1)
 *  [netffandersadmin](https://wordpress.org/support/users/netffandersadmin/)
 * (@netffandersadmin)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897387)
 * After submitting I learned you need this:
    == Omgeving == * Home URL: [neutral]
   [http://www.netffandersgroep.nl/events](http://www.netffandersgroep.nl/events)*
   Site URL: [neutral] [http://www.netffandersgroep.nl/events](http://www.netffandersgroep.nl/events)*
   WC Version: [neutral] 2.5.3 * WP Version: [neutral] 4.4.2 * WP Multisite Enabled:[
   neutral] No * Wev Server Info: [neutral] Apache/2.2.16 (Debian) ++ HTTP/1.1 *
   PHP Version: [neutral] 5.6.17-1~dotdeb+7.1 * MySQL Version: [neutral] 5.5.38 *
   WP Acitve Plugins: [neutral] 8 * WP Memory Limit: [good] U heeft meer dan het
   minimum van 64MB geheugen toegewezen. U heeft totaal 256M. * WP Debug Mode: [
   neutral] No * WP Language: [neutral] nl_NL * WP Max Upload Size: [neutral] No*
   WP Max Post Size: [neutral] 32M * PHP Max Execution Time: [neutral] 30 * PHP 
   Max Input Vars: [neutral] 5000 * WP Uploads Writable: [good] Uploads directory
   IS writable * Default Timezone: [neutral] UTC
 * == Software ==
    * Active Plugins: [neutral] + [AAN]: Contact Form by BestWebSoft(
   [http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)) bij BestWebSoft(
   [http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)), + [AAN]:
   Contact Form Multi by BestWebSoft ([http://bestwebsoft.com/products/](http://bestwebsoft.com/products/))
   bij BestWebSoft ([http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)),
   + Jetpack by WordPress.com ([http://jetpack.me](http://jetpack.me)) bij Automattic(
   [http://jetpack.me](http://jetpack.me)), + [AAN]: OpenTickets Community Edition(
   [http://opentickets.com/](http://opentickets.com/)) bij Quadshot Software LLC(
   [http://opentickets.com/](http://opentickets.com/)), + [AAN]: Our Team Showcase(
   [https://smartcatdesign.net/downloads/our-team-showcase/](https://smartcatdesign.net/downloads/our-team-showcase/))
   bij SmartCat ([https://smartcatdesign.net/downloads/our-team-showcase/](https://smartcatdesign.net/downloads/our-team-showcase/)),
   + [AAN]: PayPro Gateways – WooCommerce ([https://www.paypro.nl/](https://www.paypro.nl/))
   bij PayPro ([https://www.paypro.nl/](https://www.paypro.nl/)), + [AAN]: Quotes
   Collection ([http://srinig.com/wordpress/plugins/quotes-collection/](http://srinig.com/wordpress/plugins/quotes-collection/))
   bij Srini G ([http://srinig.com/wordpress/plugins/quotes-collection/](http://srinig.com/wordpress/plugins/quotes-collection/)),
   + [AAN]: Slimpack ([http://sparanoid.com/work/slimpack/](http://sparanoid.com/work/slimpack/))
   bij Tunghsiao Liu ([http://sparanoid.com/work/slimpack/](http://sparanoid.com/work/slimpack/)),
   + [AAN]: WooCommerce ([http://www.woothemes.com/woocommerce/](http://www.woothemes.com/woocommerce/))
   bij WooThemes ([http://www.woothemes.com/woocommerce/](http://www.woothemes.com/woocommerce/)),
   + WordPress Event Ticketing ([https://tickera.com/](https://tickera.com/)) bij
   Tickera.com ([https://tickera.com/](https://tickera.com/)) * Acitve Theme: [neutral]
   + Athena ([https://smartcatdesign.net/articles/athena-responsive-multipurpose-wordpress-theme/](https://smartcatdesign.net/articles/athena-responsive-multipurpose-wordpress-theme/))
   bij Smartcat ([https://smartcatdesign.net](https://smartcatdesign.net))
 * == Data ==
    * Event Areas: [neutral] + “Loswal 10 Kampen” [#83] (publish) * Ticket
   Products: [neutral] + #83 “Ticket Get Down On It – The Dance Anarchy Edition”(
   5) [1 EA]
 *  Plugin Author [quadshot](https://wordpress.org/support/users/quadshot/)
 * (@quadshot)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897388)
 * [@netffandersadmin](https://wordpress.org/support/users/netffandersadmin/) make
   sure to deactivate and delete Tickera. This is known to cause PDF issues.
 * [@rgrentzius](https://wordpress.org/support/users/rgrentzius/) can you send the
   system list like netffandersadmin did?
 *  [netffandersadmin](https://wordpress.org/support/users/netffandersadmin/)
 * (@netffandersadmin)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897389)
 * Hi quadshot,
    Thx for the fast reply. I did deactivate and delete Tickera but
   that doesn’t do the trick. Some extra info that might help: When I test this 
   on my phone (Samsung Note 4) the pdf can be openend after downloading but the
   layout is different and the QR code disappeared. I can send you the pdf if you
   like.
 * Grtz. J
    New system status:
 * == Omgeving ==
    * Home URL: [neutral] [http://www.netffandersgroep.nl/events](http://www.netffandersgroep.nl/events)*
   Site URL: [neutral] [http://www.netffandersgroep.nl/events](http://www.netffandersgroep.nl/events)*
   WC Version: [neutral] 2.5.3 * WP Version: [neutral] 4.4.2 * WP Multisite Enabled:[
   neutral] No * Wev Server Info: [neutral] Apache/2.2.16 (Debian) ++ HTTP/1.1 *
   PHP Version: [neutral] 5.6.17-1~dotdeb+7.1 * MySQL Version: [neutral] 5.5.38 *
   WP Acitve Plugins: [neutral] 8 * WP Memory Limit: [good] U heeft meer dan het
   minimum van 64MB geheugen toegewezen. U heeft totaal 256M. * WP Debug Mode: [
   neutral] No * WP Language: [neutral] nl_NL * WP Max Upload Size: [neutral] No*
   WP Max Post Size: [neutral] 32M * PHP Max Execution Time: [neutral] 30 * PHP 
   Max Input Vars: [neutral] 5000 * WP Uploads Writable: [good] Uploads directory
   IS writable * Default Timezone: [neutral] UTC
 * == Software ==
    * Active Plugins: [neutral] + [AAN]: Contact Form by BestWebSoft(
   [http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)) bij BestWebSoft(
   [http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)), + [AAN]:
   Contact Form Multi by BestWebSoft ([http://bestwebsoft.com/products/](http://bestwebsoft.com/products/))
   bij BestWebSoft ([http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)),
   + [AAN]: OpenTickets Community Edition ([http://opentickets.com/](http://opentickets.com/))
   bij Quadshot Software LLC ([http://opentickets.com/](http://opentickets.com/)),
   + [AAN]: Our Team Showcase ([https://smartcatdesign.net/downloads/our-team-showcase/](https://smartcatdesign.net/downloads/our-team-showcase/))
   bij SmartCat ([https://smartcatdesign.net/downloads/our-team-showcase/](https://smartcatdesign.net/downloads/our-team-showcase/)),
   + [AAN]: PayPro Gateways – WooCommerce ([https://www.paypro.nl/](https://www.paypro.nl/))
   bij PayPro ([https://www.paypro.nl/](https://www.paypro.nl/)), + [AAN]: Quotes
   Collection ([http://srinig.com/wordpress/plugins/quotes-collection/](http://srinig.com/wordpress/plugins/quotes-collection/))
   bij Srini G ([http://srinig.com/wordpress/plugins/quotes-collection/](http://srinig.com/wordpress/plugins/quotes-collection/)),
   + [AAN]: Slimpack ([http://sparanoid.com/work/slimpack/](http://sparanoid.com/work/slimpack/))
   bij Tunghsiao Liu ([http://sparanoid.com/work/slimpack/](http://sparanoid.com/work/slimpack/)),
   + [AAN]: WooCommerce ([http://www.woothemes.com/woocommerce/](http://www.woothemes.com/woocommerce/))
   bij WooThemes ([http://www.woothemes.com/woocommerce/](http://www.woothemes.com/woocommerce/))*
   Acitve Theme: [neutral] + Athena ([https://smartcatdesign.net/articles/athena-responsive-multipurpose-wordpress-theme/](https://smartcatdesign.net/articles/athena-responsive-multipurpose-wordpress-theme/))
   bij Smartcat ([https://smartcatdesign.net](https://smartcatdesign.net))
 * == Data ==
    * Event Areas: [neutral] + “Loswal 10 Kampen” [#83] (publish) * Ticket
   Products: [neutral] + #83 “Ticket Get Down On It – The Dance Anarchy Edition”(
   5) [1 EA]
 *  Plugin Author [loushou](https://wordpress.org/support/users/loushou/)
 * (@loushou)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897390)
 * Hey [@netffandersadmin](https://wordpress.org/support/users/netffandersadmin/),
 * Another update will be released today, version 2.2.3, which will mitigate this
   PDF corruption problem as much as possible. If this does not work, we are going
   to have to dig a lot deeper together, to find out why your specific environment
   is still corrupting the PDFs.
 * The original problem, which was solved 3 or 4 versions ago, was that some data
   that used to be present in an older version of the plugin, was no longer present.
   One of the templates was still trying to access this data, which was causing 
   a PHP notice. This PHP notice was getting added into the code of the PDF, thus
   corrupting it when it was attempting to be loaded in a viewer.
 * The fact that you are still having the issue even after that update, seems to
   indicate that another one of your plugins, or your theme, are causing a PHP error
   of somekind (even a warning or notice), and that is getting added to the PDF 
   output, thus again corrupting it. Today I am adding some code to our plugin that
   will try to mitigate as much of these extra PHP errors produced by external sources(
   like other plugins and themes) from being printed as possible, in a hope to prevent
   the PDF corruption.
 * If this does not resolve your issue, then we definitely need to start by getting
   a link to a corrupted PDF ticket, so I can look at it’s source, and check it 
   for some PHP errors. That may point us to the culprit. Regardless of whether 
   that helps or not, I will make a recommendation on how to proceed, if this patch
   does not work. Let me know the result if you don’t mind.
 * Loushou
 *  [netffandersadmin](https://wordpress.org/support/users/netffandersadmin/)
 * (@netffandersadmin)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897391)
 * Hi Loushou,
    Thank you for the quick update. We’re getting closer. 🙂 After installing
   the update I created a ticket and now the PDF opens when downladed. Still there’s
   a problem: the PDF can’t connect to the QR-code source. On the webpage the code
   is shown but the PDF has a message ‘image not readable or empty’ and then some
   other text but somehow the product name is printed right over that text so I 
   can’t read the rest. Also the ordernumber and the name are not shown in the PDF
   so there’s no way we can check if the ticket is unique. I will send you the PDF
   and the screenshot to compare if you like but I need an emailaddress for that.
   Otherwise mail me: [admin@netffandersevents.nl](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/admin@netffandersevents.nl?output_format=md).
   Don’t think I’ve changed anything since the last log but to be sure it’s added
   below.
 * Thx for the support
    J
 * == Omgeving ==
    * Home URL: [neutral] [http://www.netffandersgroep.nl/events](http://www.netffandersgroep.nl/events)*
   Site URL: [neutral] [http://www.netffandersgroep.nl/events](http://www.netffandersgroep.nl/events)*
   WC Version: [neutral] 2.5.5 * WP Version: [neutral] 4.4.2 * WP Multisite Enabled:[
   neutral] No * Wev Server Info: [neutral] Apache/2.2.16 (Debian) ++ HTTP/1.1 *
   PHP Version: [neutral] 5.6.17-1~dotdeb+7.1 * MySQL Version: [neutral] 5.5.38 *
   WP Acitve Plugins: [neutral] 8 * WP Memory Limit: [good] U heeft meer dan het
   minimum van 64MB geheugen toegewezen. U heeft totaal 256M. * WP Debug Mode: [
   neutral] No * WP Language: [neutral] nl_NL * WP Max Upload Size: [neutral] No*
   WP Max Post Size: [neutral] 32M * PHP Max Execution Time: [neutral] 30 * PHP 
   Max Input Vars: [neutral] 5000 * WP Uploads Writable: [good] Uploads directory
   IS writable * Default Timezone: [neutral] UTC
 * == Software ==
    * Active Plugins: [neutral] + [AAN]: Contact Form by BestWebSoft(
   [http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)) bij BestWebSoft(
   [http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)), + [AAN]:
   Contact Form Multi by BestWebSoft ([http://bestwebsoft.com/products/](http://bestwebsoft.com/products/))
   bij BestWebSoft ([http://bestwebsoft.com/products/](http://bestwebsoft.com/products/)),
   + [AAN]: OpenTickets Community Edition ([http://opentickets.com/](http://opentickets.com/))
   bij Quadshot Software LLC ([http://opentickets.com/](http://opentickets.com/)),
   + [AAN]: Our Team Showcase ([https://smartcatdesign.net/downloads/our-team-showcase/](https://smartcatdesign.net/downloads/our-team-showcase/))
   bij SmartCat ([https://smartcatdesign.net/downloads/our-team-showcase/](https://smartcatdesign.net/downloads/our-team-showcase/)),
   + [AAN]: PayPro Gateways – WooCommerce ([https://www.paypro.nl/](https://www.paypro.nl/))
   bij PayPro ([https://www.paypro.nl/](https://www.paypro.nl/)), + [AAN]: Quotes
   Collection ([http://srinig.com/wordpress/plugins/quotes-collection/](http://srinig.com/wordpress/plugins/quotes-collection/))
   bij Srini G ([http://srinig.com/wordpress/plugins/quotes-collection/](http://srinig.com/wordpress/plugins/quotes-collection/)),
   + [AAN]: Slimpack ([http://sparanoid.com/work/slimpack/](http://sparanoid.com/work/slimpack/))
   bij Tunghsiao Liu ([http://sparanoid.com/work/slimpack/](http://sparanoid.com/work/slimpack/)),
   + [AAN]: WooCommerce ([http://www.woothemes.com/woocommerce/](http://www.woothemes.com/woocommerce/))
   bij WooThemes ([http://www.woothemes.com/woocommerce/](http://www.woothemes.com/woocommerce/))*
   Acitve Theme: [neutral] + Athena ([https://smartcatdesign.net/articles/athena-responsive-multipurpose-wordpress-theme/](https://smartcatdesign.net/articles/athena-responsive-multipurpose-wordpress-theme/))
   bij Smartcat ([https://smartcatdesign.net](https://smartcatdesign.net))
 * == Data ==
    * Event Areas: [neutral] + “Champino Discozaal” [NONE] (publish),
   + “Hox All Areas” [NONE] (publish), + “Loswal 10 Kampen” [#83] (publish) * Ticket
   Products: [neutral] + #83 “Ticket Get Down On It – The Dance Anarchy Edition”(
   5) [1 EA]
 *  Plugin Author [loushou](https://wordpress.org/support/users/loushou/)
 * (@loushou)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897394)
 * Hey J (@netffandersadmin),
 * I think we have gotten as far as we can without a closer look. Lets start the
   path forward by you sending me a couple of one of the PDF files that cannot be
   opened. If you can attach it to an email and send that to [info@opentickets.com](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/info@opentickets.com?output_format=md),
   that would be a good next step. Make sure to put in your message that this is
   about a ticket on the WordPress.org forums, and that you are talking with Loushou
   about it, so that it gets routed to me.
 * Loushou
 *  [Tycho_62](https://wordpress.org/support/users/tycho_62/)
 * (@tycho_62)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897396)
 * This plugin is really ‘a gift from heaven’ as I am starting to build a website
   intended to save an old building ( long story, involves volunteers etc. etc.)
   
   Anyway, I build a testing website, WP install, Woo commerce install and I installed
   OpenTickets Community Edition.
 * So far, very good. It works! But I also have this PDF issue.
    Everything is updated
   to it’s latest version, using the 2016 theme. When I open the PDF download link
   in Firefox nothing happens, when I use Microsoft Edge I get a 500 error, both
   using Windows 10
 *  Plugin Author [quadshot](https://wordpress.org/support/users/quadshot/)
 * (@quadshot)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897397)
 * [@tycho_62](https://wordpress.org/support/users/tycho_62/) update: we’re considering
   dropping PDF support, since every modern computer and browser allows people to
   print the ticket page and/or ‘save as PDF’. The library we’re using is one of
   the best ones available and yet we still have issues with it. Since it is a moving
   target and most people just print or save the email w/link, this is something
   we’re going to have to drop as a feature.
 * However, we’re planning on supporting Android and iOS wallets for tickets, which
   is much easier. PDFs aren’t useful on mobile devices anyway, which is most of
   the market and growing more every day.
 * We just wanted to follow up and get some feedback.
 *  [Tycho_62](https://wordpress.org/support/users/tycho_62/)
 * (@tycho_62)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897398)
 * [@quadshot](https://wordpress.org/support/users/quadshot/) : Thank you for your
   reaction, it makes sense ( Modern browsers & printing & the changing mobile world)
 * Then is would seem logical to me if you remove the ‘download as PDF link’ in 
   the email the plugin is sending 🙂
 *  Plugin Author [quadshot](https://wordpress.org/support/users/quadshot/)
 * (@quadshot)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897401)
 * [@tycho_62](https://wordpress.org/support/users/tycho_62/) we’re thankful for
   the detailed back and forth. Since we’ve removed pdf and the links, marking this
   resolved.
 * Be well!

Viewing 13 replies - 1 through 13 (of 13 total)

The topic ‘Generated pdf's from ticket cannot be opened’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/opentickets-community-edition_bcbcb3.
   svg)
 * [OpenTickets Community Edition](https://wordpress.org/plugins/opentickets-community-edition/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/opentickets-community-edition/unresolved/)
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 * 13 replies
 * 5 participants
 * Last reply from: [quadshot](https://wordpress.org/support/users/quadshot/)
 * Last activity: [9 years, 11 months ago](https://wordpress.org/support/topic/generated-pdfs-from-ticket-cannot-be-opened/#post-6897401)
 * Status: resolved