diff --git a/print.admin.inc b/print.admin.inc
index a3f9a770738740de0486ebcde7ee2579522d2177..e793cc5068d0cb030230a086233ae717a0d2187b 100644
--- a/print.admin.inc
+++ b/print.admin.inc
@@ -262,6 +262,17 @@ function print_html_settings() {
     '#description' => t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
   );
 
+  $access = user_access('use PHP for link visibility');
+
+  if ($form['settings']['adv_link']['print_html_node_link_visibility']['#default_value'] == 2 && !$access) {
+    $form['settings']['adv_link']['print_html_node_link_visibility'] = array('#type' => 'value', '#value' => 2);
+    $form['settings']['adv_link']['print_html_node_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_html_node_link_pages']['#default_value']);
+  }
+  elseif ($access) {
+    $form['settings']['adv_link']['print_html_node_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
+    $form['settings']['adv_link']['print_html_node_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
+  }
+
   $form['settings']['adv_link']['print_html_sys_link_visibility'] = array(
     '#type' => 'radios',
     '#title' => t('Show link in system (non-content) pages'),
@@ -277,6 +288,15 @@ function print_html_settings() {
                       t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
   );
 
+  if ($form['settings']['adv_link']['print_html_sys_link_visibility']['#default_value'] == 2 && !$access) {
+    $form['settings']['adv_link']['print_html_sys_link_visibility'] = array('#type' => 'value', '#value' => 2);
+    $form['settings']['adv_link']['print_html_sys_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_html_sys_link_pages']['#default_value']);
+  }
+  elseif ($access) {
+    $form['settings']['adv_link']['print_html_sys_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
+    $form['settings']['adv_link']['print_html_sys_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
+  }
+
   $form['settings']['print_html_book_link'] = array(
     '#type' => 'radios',
     '#title' => t('Link in book hierarchy nodes'),
diff --git a/print.module b/print.module
index f895962cff1af89fda8b6544d69bc19876affa24..3f3d74d87d9523ce9916ae856afc9c717c8e419b 100644
--- a/print.module
+++ b/print.module
@@ -53,7 +53,7 @@ define('PRINT_ALLOW_BOOK_LINK', 2);
  * Implementation of hook_perm().
  */
 function print_perm() {
-  return array('access print', 'administer print');
+  return array('access print', 'administer print', 'use PHP for link visibility');
 }
 
 /**
@@ -576,6 +576,9 @@ function print_insert_link($path = NULL, $node = NULL) {
  */
 function _print_page_match($visibility, $pages) {
   if ($pages) {
+    if ($visibility == 2) {
+      return drupal_eval($pages);
+    }
     $path = drupal_get_path_alias($_GET['q']);
     $page_match = drupal_match_path($path, $pages);
     if ($path != $_GET['q']) {
diff --git a/print_mail/print_mail.admin.inc b/print_mail/print_mail.admin.inc
index 58d4e5ebcd89efc2979e3ec3af2eaa8768499f1a..d2f25b93115c9ade2b4ffc636aa7688c31d30185 100644
--- a/print_mail/print_mail.admin.inc
+++ b/print_mail/print_mail.admin.inc
@@ -80,6 +80,17 @@ function print_mail_settings() {
     '#description' => t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
   );
 
+  $access = user_access('use PHP for link visibility');
+
+  if ($form['settings']['adv_link']['print_mail_node_link_visibility']['#default_value'] == 2 && !$access) {
+    $form['settings']['adv_link']['print_mail_node_link_visibility'] = array('#type' => 'value', '#value' => 2);
+    $form['settings']['adv_link']['print_mail_node_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_mail_node_link_pages']['#default_value']);
+  }
+  elseif ($access) {
+    $form['settings']['adv_link']['print_mail_node_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
+    $form['settings']['adv_link']['print_mail_node_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
+  }
+
   $form['settings']['adv_link']['print_mail_sys_link_visibility'] = array(
     '#type' => 'radios',
     '#title' => t('Show link in system (non-content) pages'),
@@ -95,6 +106,15 @@ function print_mail_settings() {
                       t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
   );
 
+  if ($form['settings']['adv_link']['print_mail_sys_link_visibility']['#default_value'] == 2 && !$access) {
+    $form['settings']['adv_link']['print_mail_sys_link_visibility'] = array('#type' => 'value', '#value' => 2);
+    $form['settings']['adv_link']['print_mail_sys_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_mail_sys_link_pages']['#default_value']);
+  }
+  elseif ($access) {
+    $form['settings']['adv_link']['print_mail_sys_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
+    $form['settings']['adv_link']['print_mail_sys_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
+  }
+
   $form['settings']['print_mail_book_link'] = array(
     '#type' => 'radios',
     '#title' => t('Link in book hierarchy nodes'),
diff --git a/print_pdf/print_pdf.admin.inc b/print_pdf/print_pdf.admin.inc
index bbc4c2f95c7ed218d029c68b0bc41bc43b7047a4..a464676edacac5a4894cc42030a39aed10290699 100644
--- a/print_pdf/print_pdf.admin.inc
+++ b/print_pdf/print_pdf.admin.inc
@@ -92,6 +92,17 @@ function print_pdf_settings() {
       '#description' => t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
     );
 
+    $access = user_access('use PHP for link visibility');
+
+    if ($form['settings']['adv_link']['print_pdf_node_link_visibility']['#default_value'] == 2 && !$access) {
+      $form['settings']['adv_link']['print_pdf_node_link_visibility'] = array('#type' => 'value', '#value' => 2);
+      $form['settings']['adv_link']['print_pdf_node_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_pdf_node_link_pages']['#default_value']);
+    }
+    elseif ($access) {
+      $form['settings']['adv_link']['print_pdf_node_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
+      $form['settings']['adv_link']['print_pdf_node_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
+    }
+
     $form['settings']['adv_link']['print_pdf_sys_link_visibility'] = array(
       '#type' => 'radios',
       '#title' => t('Show link in system (non-content) pages'),
@@ -107,6 +118,15 @@ function print_pdf_settings() {
                         t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
     );
 
+    if ($form['settings']['adv_link']['print_pdf_sys_link_visibility']['#default_value'] == 2 && !$access) {
+      $form['settings']['adv_link']['print_pdf_sys_link_visibility'] = array('#type' => 'value', '#value' => 2);
+      $form['settings']['adv_link']['print_pdf_sys_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_pdf_sys_link_pages']['#default_value']);
+    }
+    elseif ($access) {
+      $form['settings']['adv_link']['print_pdf_sys_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
+      $form['settings']['adv_link']['print_pdf_sys_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
+    }
+
     $form['settings']['print_pdf_book_link'] = array(
       '#type' => 'radios',
       '#title' => t('Link in book hierarchy nodes'),