update and publish old post about combining multiple pdf files

content/posts/2024/71-combine-multiple-pdf-files/index.md

@@ -1,8 +1,11 @@
 ---
 title: Combine multiple PDF files
-summary:
+summary: >
+  A quick note on how I got multiple PDF files combined into one single one
+  on a linux command line.
+  <small>The thumbnail was created with Google AI (Imagen 3).</small>
 date: 2024-10-26T20:27:05+02:00
-# lastmod: 2024-08-18T14:20:52+0000
+lastmod: 2024-12-08T11:13:52+0000
 categories:
   - computerstuff
 tags:
@@ -10,28 +13,6 @@ tags:
   - openbsd
   - freebsd
   - linux
-  - draft_post
-
-# showBreadcrumbs: true
-# showDate: false
-# showReadingTime: false
-# showWordCount: false
-# showPagination: false
-
-# feed_exclude: true
-# site_exclude: true
-
-# some help
-#
-# highlighting with highlights
-#
-# use table, as inline creates a padding around
-# and it pushes the text more to the right side (end of screen)
-#
-# ~~~html {linenos=table,hl_lines="3-6"}
-# ~~~html {linenos=inline,hl_lines="1,3-6"}
-
-draft: true
 ---
 
 I sometimes want to combine two or three PDF files into one (to print them