How to Regenerate PDF Thumbnails in WordPress

How to Regenerate PDF Thumbnails in WordPress
Ruby Roberts

Recently, one of readers users asked if it was possible to regenerate PDF thumbnails for old uploads in WordPress? In WordPress 4.7, you now have thumbnail previews for all new PDF files. However, this change does not affect older uploads. In this article, we will show you how to regenerate PDF thumbnails in WordPress for older uploads.

How to Generate PDF Thumbnails in WordPress
Anderson Crutcher

A PDF or Portable Document Format is currently the most popular file format in use and was created in 1993 by Adobe. It is extremely impressive that it is still in use today when you consider how many file formats have become obsolete. The reason the PDF file format has stood the test of time is the fact that it will not compromise what is in the PDF regardless of which hardware you open it on. This means the file today will look the exact same way on a computer from 2000 and vice versa. This makes it the best file format to use when you have forms on your website for which formatting is important, like a W2 form for instance.
Denise Jimenez

Albanian, Bulgarian, Chinese (Taiwan), Croatian, Czech, Danish, Dutch, English (Australia), English (Canada), English (New Zealand), English (UK), English (US), Finnish, French (France), German, Greek, Italian, Japanese, Persian, Polish, Portuguese (Brazil), Portuguese (Portugal), Romanian, Russian, Spanish (Chile), Spanish (Spain), Swedish и Turkish.
Nelia Stallings

We are using the Document Gallery to display PDF archives on our website. Occasionally, the underlying PDF files are being updated but the thumbnails shown for the archive do not get updated. Is there a way to force the PDF thumbnails to update after we upload a new version of the underlying files?

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