Blank PDF report generated from Demo Site and Production Site 8.3.0

Support
1

Situation
Hello,
PDFs Report generated are hundreds of blank pages. The screenshot attached is taken from the main Demo site.

OpenEMR Version
I’m using OpenEMR version 8.3.0.

Browser:
I’m using: Chrome

Operating System
I’m using: Debian

Search
Did you search the forum for similar questions?

Logs
Did you check the logs?
Was there anything pertinent in them?
Please paste them here (surround with three backticks (```) for readability.

```[Thu Aug 20 09:12:20.005391 2026] [php:warn] [pid 1307868:tid 1307868] [client 192.168.1.171:49349] PHP Warning: Undefined array key 1 in /var/www/html/openemr/interface/patient_file/report/custom_report.php on line 758, referer: https://xxxxxx.com/interface/patient_file/report/patient_report.ph[​](https://xxxxxx.com/interface/patient_file/report/patient_report.php “Open link in external tab”)p

```

You can also turn on User Debugging under Administration->Globals->Logging User Debugging Options=>All

PDF Problem
PDF Problem3244×1240 60.3 KB

2

Hi @ninjatx, thanks for the bug report. Will take a look into it right away.

1 Like
3

Hi @ninjatx, a quick fix is to add 'CSSselectMedia' => 'screen', to src/Pdf/Config_Mpdf.php.

<?php

/**
 * This class returns a generic mPDF config array
 *
 * @package OpenEMR
 * @author Stephen Waite <stephen.waite@cmsvt.com>
 * @copyright Copyright (c) 2023 Stephen Waite <stephen.waite@cmsvt.com>
 * @link https://www.open-emr.org
 * @license https://github.com/openemr/openemr/blob/master/LICENSE GNU General Public License 3
 */

namespace OpenEMR\Pdf;

use OpenEMR\Core\OEGlobalsBag;
use OpenEMR\Services\Storage\CacheDirectory;

class Config_Mpdf
{
    public static function getConfigMpdf()
    {
        return [
            'tempDir' => (new CacheDirectory())->for('openemr-mpdf'),
            'mode' => OEGlobalsBag::getInstance()->get('pdf_language'),
            'format' => OEGlobalsBag::getInstance()->get('pdf_size'),
            'default_font_size' => OEGlobalsBag::getInstance()->getInt('pdf_font_size'),
            'default_font' => 'dejavusans',
            'margin_left' => OEGlobalsBag::getInstance()->getInt('pdf_left_margin'),
            'margin_right' => OEGlobalsBag::getInstance()->getInt('pdf_right_margin'),
            'margin_top' => OEGlobalsBag::getInstance()->getInt('pdf_top_margin'),
            'margin_bottom' => OEGlobalsBag::getInstance()->getInt('pdf_bottom_margin'),
            'margin_header' => '',
            'margin_footer' => '',
            'orientation' => OEGlobalsBag::getInstance()->get('pdf_layout'),
            'shrink_tables_to_fit' => 1,
            'use_kwt' => true,
            'autoScriptToLang' => true,
            'keep_table_proportions' => true,
            'CSSselectMedia' => 'screen',
        ];
    }
}
1 Like
4

Thank you so much for the fast response! It’s fixed.