How to Lay Out a Non-Fiction Book with Images for Print

To lay out a non-fiction book with images for print-on-demand, anchor every image to a specific paragraph, use inline (In Line with Text) wrapping for maximum PDF stability, format captions consistently below each figure, and compress individual images to 300 DPI JPEG before inserting them into your manuscript. The platform you print through determines exact file size limits and format requirements.

What DPI and File Size Do Print-on-Demand Platforms Require for Interior Images?

Every major print-on-demand platform requires interior images at a minimum of 300 DPI (dots per inch) for acceptable print quality. The total interior file size, individual image dimensions, and accepted formats differ by platform, so checking the specs for your chosen distributor before you start placing images saves rejection headaches later.

Amazon KDP accepts PDF interiors up to 650 MB, with individual images capped at 5 MB each. KDP’s interior image guidelines set 300 DPI as the minimum and recommend staying at or below 600 DPI to keep the total file manageable. For images to support KDP’s “Look Inside” zoom feature, the longest side needs at least 1,000 pixels and the shortest side at least 500 pixels. KDP requires a 0.125-inch bleed on the three outside edges for any page where images extend to the trim line, and a minimum line thickness of 0.75 pt for any rules or borders.

IngramSpark’s file creation guide specifies 300 PPI (pixels per inch; functionally identical to DPI for digital images), a 1.5 GB maximum interior file size, and a minimum image dimension of 1,600 pixels on the shortest side. IngramSpark requires PDF/X-1a format with all images in CMYK colour space and a maximum ink density of 240%. Bleeds follow the same 0.125-inch standard on the three outside edges.

Draft2Digital handles ebook distribution with a 100 MB EPUB file size limit and a maximum single-image dimension of 1,600 by 2,400 pixels (5.6 million pixel cap). For print distribution through Draft2Digital’s IngramSpark integration, the IngramSpark specs above apply. Because Draft2Digital charges delivery fees based on file size, keeping images compressed matters more here than on the other platforms.

Should You Use Inline or Floating Images in a Non-Fiction Book Layout?

Inline images are more stable during PDF conversion; floating images offer better design control. For most self-published non-fiction authors working in Microsoft Word, inline placement is the safer default. Authors using Adobe InDesign have more robust anchoring tools that make floating images practical without the drift risk.

An inline image sits on the text baseline and moves with the surrounding paragraph as content shifts. If you add a sentence above it, the image slides down with its paragraph. This behaviour makes inline images predictable during Word-to-PDF conversion, which is the step where most image placement problems surface. The trade-off is limited layout flexibility: an inline image occupies its full width in the text flow, and you cannot wrap body text beside it.

A floating image holds a fixed position on the page while text flows around it. This allows more sophisticated layouts: a photo in the right margin with body text wrapping alongside it, or a diagram positioned at the top of a page regardless of where its reference paragraph falls. The risk is that floating images can shift when the document reflows during PDF export, during pagination changes, or when a reader opens the file on a different system with different default fonts.

For image-heavy non-fiction (cookbooks, travel guides, technical manuals), a mixed approach often works best. Use inline placement for images that must stay locked to a specific paragraph of explanation. Use floating placement with locked anchors (see the next section) for decorative images, chapter openers, or full-page plates where precise page position matters more than paragraph association. If your book has fewer than 20 images, inline-only is simpler and eliminates an entire class of conversion errors. The approach you choose also affects how your book handles colour interior printing costs, since image placement density influences page count.

How Do You Anchor Images in Word and InDesign to Prevent Drift?

In Word, select “In Line with Text” wrapping for maximum stability; for floating images, use absolute positioning with a locked anchor. In InDesign, use anchored objects set to the “Custom” position type with precise offset values. Both approaches tie the image to a specific paragraph so it cannot drift during export.

Microsoft Word

Word offers six text wrapping options, accessible by right-clicking an image and selecting “Wrap Text.” Microsoft’s documentation on text wrapping covers each mode: In Line with Text (image sits on the baseline), Square (text wraps in a rectangle around the image), Tight (text follows the image contour), Top and Bottom (text appears above and below only), Behind Text, and In Front of Text.

For non-fiction book layout with images destined for print-on-demand PDF, “In Line with Text” is the most reliable. It eliminates drift entirely because the image is treated as a character in the text flow. If you need text wrapping, use “Square” or “Top and Bottom” with these additional steps:

1. Right-click the image and choose “Size and Position.”
2. Under the Position tab, set both horizontal and vertical position to “Absolute” (in inches or centimetres, not relative to a column or margin).
3. Tick “Lock anchor” to prevent the anchor from jumping to a different paragraph during editing.
4. Set the anchor to the paragraph that references the image, so the two stay on the same page.

When exporting to PDF, use “Print to PDF” (File > Print > Microsoft Print to PDF) rather than “Save as PDF.” The print pathway renders the document through the same layout engine that handles pagination, which preserves image positions more faithfully. Disable image compression in Word’s options (File > Options > Advanced > Image Size and Quality > “Do not compress images in file”) to prevent Word from silently downsampling your 300 DPI images during save. If your manuscript includes embedded fonts, make sure they are properly embedded in the PDF before uploading.

Adobe InDesign

InDesign’s anchored object system is more sophisticated than Word’s. It supports three position types: Inline (on the text baseline, like Word’s “In Line with Text”), Above Line (centred or aligned above the text line where the anchor sits), and Custom (precise positioning relative to the anchor paragraph with independent horizontal and vertical offsets).

For non-fiction layouts, the Custom position type gives the most control. You can place an image at a fixed offset from its anchor paragraph (for example, “2 cm above the anchor line, aligned to the outside margin”) and the image will follow its anchor paragraph across page breaks. InDesign’s text wrap panel lets you set offset values around each anchored frame: positive values push text away from the image; negative values allow text to overlap the frame edge. InDesign also offers intelligent subject detection for contour wrapping, which is useful for irregularly shaped illustrations.

For authors laying out image-heavy books like children’s picture books, InDesign’s anchored objects handle complex multi-image page layouts that Word cannot reliably reproduce.

What Are the Caption Formatting Conventions for Non-Fiction Books?

Place captions below images, number them sequentially or by chapter (Figure 1 or Figure 3.1), and format them at 80-90% of your body text size, typically in italics or a lighter font weight. Consistency matters more than which specific style you choose; pick a convention and apply it to every figure in the book.

The standard caption format in non-fiction publishing is “Figure X: Description.” Use either sequential numbering (Figure 1, Figure 2, Figure 3 through the entire book) or chapter-based numbering (Figure 3.1, Figure 3.2 for the first and second figures in Chapter 3). Chapter-based numbering works better for books with more than 30 figures, since it lets readers locate images by chapter without counting from the beginning. Sequential numbering is simpler for shorter books.

Caption text should be noticeably smaller than the body text but still legible in print. If your body text is 11 pt, set captions at 9 or 10 pt. Italics are conventional for caption text in most non-fiction styles, though some publishers use a lighter weight of the body typeface instead. The key principle is visual distinction: a reader glancing at the page should immediately recognise caption text as separate from body text.

Commit to either full sentences or fragments for all captions, not a mix. If your captions explain what the figure shows (“Figure 4: The Mississippi Delta sediment plume as photographed from the International Space Station in March 2024”), use full sentences with terminal punctuation throughout. If they serve as labels (“Figure 4: Mississippi Delta sediment plume, March 2024”), use fragments throughout. Mixing the two styles reads as inconsistent editing.

Credit lines (photographer attribution, source citations) sit below the caption in an even smaller size or within parentheses at the end of the caption text. For licensed stock images, check the licence terms; some require credit in a specific format.

How Do You Compress Images to Meet POD File Size Limits?

Compress each image individually to 300 DPI JPEG at 1-2 MB before inserting it into your manuscript, rather than compressing the entire PDF after export. Pre-compression preserves image quality at the individual file level while keeping the total document size well within platform limits.

KDP’s 650 MB ceiling and IngramSpark’s 1.5 GB limit sound generous, but a non-fiction book with 50-100 high-resolution images can approach those thresholds quickly if images are inserted at their original camera resolution (often 4,000-6,000 pixels wide at 72 DPI from a phone, or 300 DPI TIFF files at 20-40 MB each from a professional camera). The solution is not to reduce DPI below 300 (that degrades print quality) but to resize and compress each image before it goes into the manuscript.

For photographs, save as JPEG at 80-85% quality. This typically produces files of 0.5-2 MB per image at 300 DPI while preserving visual quality that is indistinguishable from uncompressed in print. For graphics with sharp edges, transparency, or flat colour areas (charts, diagrams, logos), PNG is the better format; these files are usually smaller than photographs anyway. Resize images to their intended print dimensions at 300 DPI before inserting them. An image that will print at 4 inches wide needs to be 1,200 pixels wide (4 inches times 300 DPI); anything beyond that resolution adds file size without visible improvement in print.

Avoid post-export PDF compression. Both KDP and IngramSpark recommend against running the final PDF through compression tools (Adobe Acrobat’s “Reduce File Size,” Ghostscript, or online PDF compressors), because these tools often re-encode images at unpredictable quality levels and can introduce artefacts that cause print rejection. If your final PDF is still too large after individual image compression, the usual culprit is duplicate embedded fonts or images that were inserted at their original dimensions and then visually resized within Word or InDesign (which embeds the full-size file regardless of display size). In Word, use “Compress Pictures” (under Picture Tools > Format) with the “Print (220 ppi)” option only as a last resort, and always check image quality in the output PDF at 100% zoom before uploading.

Frequently Asked Questions

What happens if my images shift when I convert my Word document to PDF?

Image drift during Word-to-PDF conversion is almost always caused by floating images without locked anchors. Switch affected images to “In Line with Text” wrapping, or set floating images to absolute positioning with the anchor locked to the reference paragraph. Use “Print to PDF” rather than “Save as PDF” for more faithful layout reproduction. Always open the exported PDF and check every image against the Word file before uploading to a print-on-demand platform.

Do I need to convert my images to CMYK before uploading to KDP?

KDP accepts RGB images and converts them internally, though the conversion can shift colours (particularly bright greens and blues). IngramSpark requires CMYK with a maximum ink density of 240%. If you are distributing through both platforms, preparing your images in CMYK from the start gives you consistent colour across both and avoids unexpected shifts during KDP’s automatic conversion.

Can I use full-page images in a print-on-demand book?

Yes, but the image must extend into the bleed area (0.125 inches beyond the trim line on the three outside edges). For a standard 6-by-9-inch book, a full-page bleed image needs to be at least 6.25 by 9.25 inches at 300 DPI (1,875 by 2,775 pixels). Set up bleed in your document margins before placing the image. Both KDP and IngramSpark will reject files where full-page images stop exactly at the trim line, because trimming tolerances mean the image could leave a thin white strip along one or more edges.

How many images can a print-on-demand interior file hold?

There is no hard limit on the number of images. The constraint is total file size: 650 MB for KDP and 1.5 GB for IngramSpark. A typical 300 DPI JPEG compressed to 1 MB each would allow roughly 600 images within KDP’s limit before accounting for the text content. In practice, page count and printing cost are the real limiting factors for image-heavy books, not file size.

Should I add borders or frames around images in a non-fiction book?

A thin border (0.5-1 pt, black or dark grey) helps separate images from surrounding white space, particularly for photographs with light edges that would otherwise bleed into the page background. Avoid heavy decorative frames, which date quickly and compete with the image content. If you add borders, keep line thickness above KDP’s minimum of 0.75 pt to ensure they render in print. Apply the same border treatment to every image in the book for visual consistency.

Laying out a non-fiction book with images takes more preparation than a text-only manuscript, but the technical requirements are straightforward once you understand your platform’s specs and your software’s anchoring tools. Set your images to 300 DPI, anchor them to the right paragraphs, format your captions consistently, and compress before you insert. Check the exported PDF page by page before uploading.