How to Fix Epubcheck Errors in Smashwords?

If you are a self-publisher or an author who has been facing epubcheck errors in smashwords, then this post is for you. In this article, I will tell you how to fix epubcheck errors at smashwords quickly. What all you need to do is to read this blog post up to the end carefully.

Reasons making your epub failing in smashwords

Smashwords is one of the biggest platforms for self-publishers who want to make some money by writing books that may include short stories, technical books, How To guides, recipe, and more. However, to see your book published on this platform, you need to ensure that your ebook has been formatted as per their guidelines. And, you are failing to meet their guidelines, you will get epubcheck errors, and unless the issues are fixed, your ebook will not be published.

So, the main reason holding your back, and maybe your earnings is the awkward formatting of the epub. Sometimes, it happens that you have everything perfect; for example, the paragraph styles, the table of contents, and so on. But, there is something in the background that is holding your book. That something is understandable to technical people who have good knowledge of HTML, XML, CSS, and eBooks. For example, content.opf file has been missing some important entries, or it has something extra that should not be in a valid epub. Similarly, your meta tags are not written correctly. Or, there can be any other technical reason apart from the formatting of paragraphs.

If you are not a technical person with sufficient knowledge to understand the epubcheck errors, I will suggest you skip to the end of this blog post for the fastest and easiest solution.

Finding Errors in your epub holding your book from publishing at smashwords or any other platform

When the team at smashwords rejects your book, they just show you a message saying that your book has not been passed due to Epubcheck errors in smashwords. You can download your Epub, fix the issues, and reupload it.

So, now you only that there are some errors, but what are those errors, you have no knowledge about them. So, when you do not know the error, how can you fix it.

Let me tell you how to find errors in your epub ebook:

  1. Go to
    fix epubcheck errors
  2. Click the Browse button and select the epub file giving the error.
  3. Click the Validate
  4. Within a few minutes, you will see a list of errors with their line numbers and position in that line.

Now, when you have a list of errors, it’s the time to learn the process of fixing epub check errors.

How to Fix Epubcheck Errors in Smashwords?

Fixing epub check errors depends upon your expertise. You can perform the below steps:

  1. Open epub file in any epub editor.
  2. Go to the HTML, CSS, XHTML, or any other file based on the error shown after the validation.
  3. Go to the line number in which the error has been shown.
  4. Fix the error.
  5. Save the file.
  6. Repeat the above steps to fix all errors.

This is how you can correct epub check errors in smashwords. But, remember that this solution is only for those who are good with HTML, CSS, XHTML, XML, and other related languages and solutions. If you are not a techy, you can skip to the last but the simplest solution to fix epubcheck error in smashwords.

Easiest, fastest, and surest solution to get rid of any epubcheck error

You can contact a smashwords expert who has the capability to fix epubcheck errors in smashwords. Or, you can also contact someone who is good at creating, modifying, and fixing epub errors. You should always contact a professional who has many years of experience in this field. If you do not know anyone, then you can contact me directly at:


Please replace [at] with @ and in the subject write “Fixing EPubCheck Errors.”

Or, click here are two experts you can also contact to fix epubcheck errors, smashwords errors, and any ebook formatting service. Click here to reach Smashwords expert 1 and click here to contact Smashwords expert 2.

Deepak Gupta

Deepak Gupta is a Freelancer. He does freelancing related to Ebook Conversion, SEO, SEO Copy writing, Guest Blog Posts, and much more. He can be contacted at

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