![]() ![]() Do not leave blank, otherwise it will give you an error. If you will include a certain identifier for the book, such as dc:description, you must enter something inside. Do not leave any files in your EPUB hanging loose. Reference everythingĮvery little file you use must be included as an item in the manifest. images or videos residing on public websites) then assign “remote-resources”. If you have a chapter (HTML page) which is using any type of Javascript, then you must assign the “scripted” property to the item. Item propertiesĬheck the properties you assign for each item in the manifest. IDs must start with a letterĮvery item in the manifest must have a unique ID, starting with a letter, not a digit. But once we replaced it with “data-content”, that worked like a charm. For example, we used a “content” attribute, to define some interactive behaviour. Unsupported tagsĪny tags or attributes you make up, will not work, as they need to follow the EPUB standard. On Windows, to accomplish this, select all the files you would like to zip, and then (here’s the trick) right-click on the mimetype file, and choose Send to > Compressed (zipped) folder. Here is the list of errors we found to be most common, along with their suggested fix: Mimetype must be the first fileįile order matters inside zip archives. Once you’re able to open and edit the EPUB file contents yourself, as well as package it back again, it will be simple to fix all these problems. If you are unfamiliar of the anatomy of an EPUB file, read our blog article: Alice in EPUB-Land. But we have found a particular set to be common among most users. ![]() Most common errorsĪs an ebook publishing technology provider, we have come across many types of errors. Each error/warning will have a description, accompanied with the file in question and location (line number). You will find a full report for all the errors and warnings in the file named report.xml. Java -jar epubcheck.jar -out report.xml epubfilename.epub Type in the following command, replacing epubfilename.epub with your own filename.On Mac, by Cmd-clicking on the folder and choosing New Terminal at Folder On Windows, by holding shift and right-clicking inside the folder and choosing Open command window here Open your command line window / terminal:.Copy and paste your EPUB file into the same directory You will find a file epubcheck.jar along with a number of files and folders.Extract the downloaded EpubCheck source files anywhere on your computer.Downloading the EpubCheck source files from their GitHub page.In this case, you will need to download EpubCheck and run it locally. What if my EPUB is larger than 10MB?įair enough. The free online validator accepts files up to 10MB in size. After a while, you will be given a list of all the errors and warnings existing in your EPUB. You can ignore the warnings, since they do not break submissions to Apple. Simply open this page, choose your EPUB file, and click Validate. This tool is available independently at. Apple uses IDPF‘s EpubCheck tool to check for errors in the EPUB prior to submission (reference: ). You can actually validate the EPUB file and find the problems yourself. Validating your EPUB fileĪ great thing about ebook submissions, is that you do not have to rely on Apple’s vague ambiguous error messages. Once you’re calm, let’s resolve the submission issues. Also, back wall maintenance may be expensive. There is a massive audience behind those over-protected Apple stores, very willing to pay for good products they find. While the most common reaction to those long-awaited rejections would be to flip your keyboard into the air and punch the screen into the back wall, we would not advise that. It has become quite unlikely to submit anything to Apple without getting rejected at the first few attempts.
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