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Interior Reviewer Guide

Created on: Nov 2, 2011 11:21 AM by CreateSpaceResources - Last Modified:  Nov 16, 2011 6:16 AM by CreateSpaceKate

While utilizing the Interior Reviewer tool to review your interior file, you may have received one or more notifications that your file has errors, warnings, or has had automatic "fixes" applied. These fixes include the removal of information that is considered unnecessary for printing or changes to the structure of the file. We strive to make the file review process as smooth and time-efficient as possible by fixing as many errors as we can while maintaining your formatting intentions. Read below for explanations of these errors, warnings, and fixes.


Trim Size


If you have uploaded a manuscript that is set up for a trim size other than your selected trim size, Interior Reviewer can adjust the file to fit in one of two ways:


Paste Into Template

(Best choice for lightly-formatted documents)

This option "flows" the manuscript's content into a template sized for your selected trim size. Since using this option will either increase or decrease the pages in physical size, the overall page count of the book will change. One benefit of this solution is that the font size will not differ from your originally chosen size. Note that any manual formatting that you have included, such as hard returns or multiple spaces, will appear exactly as typed and may not appear as intended. It is best to perform any formatting using the tools provided within the word-processing program rather than adding spaces manually.


Page Scaling

(Best choice for heavily-formatted documents)

Unlike pasting your content into a new template, page scaling shrinks or enlarges each page and its contents proportionately to fit the selected trim size. Because each page and its content are simply made smaller or larger, any manual formatting will appear the same and your page count will not change. Since the overall scale of the page has changed, the size of your fonts and images will change as well. Because the size of any included images will be changed, the resolution of those images will be affected. When an image is scaled up, its resolution will decrease and become grainier. Conversely, when an image is shrunk, its resolution will increase and become clearer.


Margins & Bleed


Margin Issues

When printing a book, margins are utilized to ensure that all information is visible and that the user's reading experience is unhindered. A margin of 0.25" is required on the three outside edges of each page. This ensures that the information will not be trimmed when the book is produced and that the reader can easily view the page. The fourth side of each page - the side where the book is bound - is known as the "gutter margin," and will vary based on the number of pages in the book. The more pages in the book, the wider the gutter margin is required to be in order for the text to be easily visible and not swallowed up by the binding used to hold the book together. If information extends into these margins, Interior Reviewer will notify you by displaying a margin error. Typically, the two methods described above, "Paste Into Template" and "Page Scaling," will prevent any margin issues, but depending on how the original document was made, neither method may be able to correct them all. The Interior Reviewer will alert you if any text, images, or line art extend into the margins and need to be corrected.


Bleed Errors

If you intend to have images or background artwork that extend to the very edge of the page, then your book should include "bleed." Bleed is a slight extension of the page beyond the trim lines so that when the book is trimmed to its desired size and any variance occurs, the graphics will not fall short of the trimmed edge. If an image is intended to bleed, it must extend to 0.125" beyond the trim line. If Interior Reviewer determines that the graphics do not extend far enough, it will notify you that there is a bleed error.




Interior Reviewer may notify you of some possible font errors. These could include:


Font Is Missing

Typically, when a PDF is created, any fonts that were used are included, or "embedded," as a part of that PDF file. PDFs can be created without including the font, but they cannot be printed without them. Interior Reviewer can embed many common fonts and will attempt to do so if it does find unembedded fonts. However, any fonts that could not be embedded will result in this error.


Font Was Embedded

This notification occurs when Interior Reviewer identifies that a font was not embedded in a PDF file and can then successfully embed it. If you do receive this notice, it is recommended that you review the document carefully within Interior Reviewer for any slight visible changes that may have occurred.


Image Quality


Low Resolution Images

Interior Reviewer will analyze the quality of any images that are included in your document. All digital images have a "resolution," which is a measurement of the amount of detail an image has. The higher the resolution, the more detail and clarity the image has. Resolution is measured in several ways, but we typically refer to it in terms of how many dots, or small pieces of visual information, there are in a square inch of the image. For an image to be high-resolution, it is generally considered to have 300 or more dots per inch (DPI) when the image's dimensions are the size at which you want it to be displayed. If an image is stretched out to be made bigger, those dots become bigger, and thus the number of dots in each square inch decreases. Because the dots become bigger, the image will start to appear blocky or pixilated. It is recommended that the images that you include be high-resolution. Interior Reviewer will alert you when the images included in your interior are of a low resolution. However, this is just a warning; you can move forward with low-resolution images, but the quality of the image might look blurry or pixilated when printed.




Interior Reviewer will analyze the structure of your uploaded document, and it will alert you if it fixes any issues. Possible fixes include:


Removed Annotations

PDFs can contain many useful interactive features that help illustrate, notate, or complement the information provided within them. It is not uncommon to see features such as hyperlinks, bookmarks, review notes, video, JavaScript, and other interactive items in a PDF. However, while these features are useful in a digital reading experience, they would not function in a physical book. As such, they are removed so that the document can be printed correctly.


Removed Form Fields

Word documents and PDFs have the ability to contain interactive "form fields," which are areas a reader can input information digitally. In a physical book, this is not possible, and interactive form fields are non-printing objects. These fields are removed to ensure that what you see on screen is an accurate representation of how the book will appear in print.


Flattened Layers

PDFs have the ability to contain "Layers." Layers are a way of visually presenting information by stacking it to determine what can be seen. In other words, placing an object on a top-most layer will block that area on the layer beneath it from view. Layers can preserve information that is not visible, but when printed, the hidden information is unnecessary. Therefore, including layers can cause problems with the printing. As such, layers are "flattened," which means that all layers are combined with the end result being the same visible outcome.


For more information and tips on file formatting, check out the Formatting Your Files articles in CreateSpace Resources. If you have additional questions about Interior Reviewer, please check out the Help section or contact member support.

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