Learn how to quickly help yourself when dealing with some issues.

Documentation Category: Troubleshooting Errors

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  • PDF files are slow and how to optimize a PDF file to render it faster?

    Typically, PDFs with a smaller file size will be rendered faster and it depends on how big a single page is. The amount of pages does not affect the performance because we are loading and rendering only those pages that are currently visible. You must optimize your documents for the web for better and faster…

  • Crashing or blank pages on mobile devices

    There are a couple things that you can try if you are experiencing crashing or blank pages when the viewer is loaded on mobile devices: The first thing to would check is the formatting of the document when it was created as a PDF, in particular, look at how the images have been added and…

  • Fake Worker error and SiteGround Caching / Optimization

    Caching and combining JS has been known to be an issue with other caching tools. If you do not require the extra performance of the SiteGround caching/optimization tools, you can: Make sure that mobile caching is not set differently from the desktop as this will result in the desktop version working and the mobile version…

  • Setting up fake worker failed Error on update

    Learn the cause and how to resolve the “Setting up fake worker failed” error when using our PDF Embedder plugin on your site.

  • The API version does not match the Worker version Error on update

    This error comes up if there is a caching and/or minifying plugin on the site that has cached the previous version of the plugin scripts and now does not match with the updated plugin. To rectify this error, you need to clear the cache and allow the site to reload the scripts. To prevent this…

  • Using Caching or Minifying Plugins

    Learn how to configure your caching and minifying settings to work well with the PDF Embedder plugins

  • Troubleshooting the Failed to Fetch Error

    Understand the ‘Failed to fetch’ error and how to resolve it when using our in PDF Embedder Premium plugin.

  • Invalid PDF Structure in Edge browser only

    This is a strange issue, and really your web hosting company may have to investigate. You may find that your web server sometimes redirects requests for the PDF file to your home page. If you enter the PDF URL directly into the Edge URL bar you will probably see that it sends you to the…

  • After PDF loads, the page is cut off vertically or cannot scroll

    Some Themes have Javascript code that automatically adds scrollbars or positions other features depending on the exact height of every item on the page. However, because PDF Embedder changes height after the PDF is fully loaded, the Theme really needs to recalculate everything after the PDF loads. But unfortunately some Themes fail to account for…

  • Download button opens PDF in a new tab

    You may find that when you click on the ‘download’ button within the PDF viewer, the PDF opens in a new tab instead of downloading. This behavior normally happens in Chrome, and you might consider it annoying – when you download a file you want it to be downloaded to your hard drive, and then…

  • I see the ‘View in Full Screen’ overlay when I don’t want it

    Hiding the Overlay You see the ‘View in Full Screen’ message when the PDF is embedded in too narrow a column. This is designed so that on mobile devices, the user always has to open in full screen rather than trying to grapple with the inline PDF viewer which is difficult to use in a…

  • My Theme’s menu bar or header obscures the full screen view of the PDF

    To ensure the menu is behind the viewer when in full screen, you could try adding the following CSS to your theme’s style.css or similar: .pdfemb-fsp-wrapper { z-index: 999999 !important; } You might need to increase the number to something even higher to ensure it takes priority over the ‘z-index’ of your Theme’s header.