lak27 Posted July 21, 2014 Share Posted July 21, 2014 (edited) Hi All, While opening an invoice, it comes up an error with this message: FPDF error: Some data has already been output, can't send PDF file Could anyone help me to fix it? I tried this http://www.prestashop.com/forums/topic/18294-fpdf-error-some-data-has-already-been-output-cant-send-pdf-file/ but it doesn't work:( My prestashop is 1.4.4.1 Your prompt attention is greatly appreciated. Edited July 21, 2014 by lak27 (see edit history) Link to comment Share on other sites More sharing options...
limon994 Posted July 21, 2014 Share Posted July 21, 2014 Hello, This error means Before completion of the process of your PDF file your site has echo or print some data. Do you use any third party modules? Or Is there any editing of prestashop's core files? Link to comment Share on other sites More sharing options...
lak27 Posted July 21, 2014 Author Share Posted July 21, 2014 Could you please tell me in which file I should look? Link to comment Share on other sites More sharing options...
tuk66 Posted July 21, 2014 Share Posted July 21, 2014 /classes/PDF.php and /override/classes/PDF.php Link to comment Share on other sites More sharing options...
lak27 Posted July 23, 2014 Author Share Posted July 23, 2014 I checked it and I replaced the files, but still is not working Link to comment Share on other sites More sharing options...
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