![]() ![]() But do keep in mind that it’s possible, so that you can experiment with possibilities. It’s rare that you’d deliberately add metadata to elements within files, such as specific paragraphs or phrases, because you really don’t have time or a clear need for it. ![]() This tells ereaders to use that image in its Library display, which is very important to users. Right-click the image file and select Add Semantics > Cover Image. In addition to adding semantics for HTML files, you must also add semantics for the cover image, usually cover.jpg, in your Images folder. That’s the file that ereaders will jump to on first opening a new ebook. And the most important semantic tag is the one Sigil calls ‘Text’. Access the Metadata Editor: In Sigil’s interface, you’ll find a left sidebar called the Book Browser. Sigil will open the EPUB file for you to start working on. Select Open and browse for the EPUB file you want to edit. Only one file can correspond to each book part. Import your EPUB file: Launch Sigil and click on File in the menu bar. Just right-click each HTML file and go to Add Semantics… then tick the book-part that corresponds to that chapter. Sigil lets us set this information as document-level metadata. That’s if it knows which HTML file is the first chapter. For instance, the first time you open an ebook, most good ereaders will jump you straight to the first chapter, skipping all the frontmatter. If an ereader knows which HTML file represents each book part, it can do useful things. In your epub you’ll have a bunch of HTML files, and each will likely correspond to a part of a book: cover, title page, copyright page, preface, and so on. To add this metadata in Sigil, just go to Tools > Metadata Editor. Just to be a valid epub, epub-level metadata must include: Rather use Sigil’s metadata editing tools. ![]() Sigil will let you edit that file directly (just double-click it on the left), but editing it directly is not a good idea. Technical note Book-level and document-level metadata is actually stored in a special file called content.opf. Some metadata applies to the epub as a whole, some to specific files, and some even to specific elements inside files. You have to provide some of this metadata. For instance, your driver’s licence is metadata about you.Įpub ebooks must store some information about themselves so that machines know how to deal with them. If everything is perfect, click on ‘Update PDF Metadata’ then download your file when the update is complete.Metadata is information about information. Edit PDF File Metadata – Once the file is uploaded, you can delete, add and edit metadata fields at your discretion.Simply click on ‘Choose file’ and select a PDF from your device or drag and drop the file on the provided space. Upload PDF File – The function will open in a new page, where you can drag and drop your PDF file for editing.You can also click on ‘All tools’ and select edit metadata from the library. To edit metadata, visit and select the function from the list of tools on the homepage. Launch Edit Metadata Function – 2-df has many tools you can use to manipulate PDF pages and files.Here’s how to edit your PDF file metadata using 2PDF. ![]() 2PDF is one of the leading online PDF editors and doesn’t charge a fee. Some editors require a download and installation, while others offer an instant online service. You can use paid software and subscriptions or free tools. There are many ways to edit PDF metadata. ![]()
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