You designed a book at 8 × 10 inches and now want a smaller 6 × 9 inch edition. Choosing “fit” may make the PDF fit the paper, but it also shrinks the text, rules, captions and image details. A page that still looks balanced on screen can become uncomfortable to read in a hand-sized book.
Use this workflow to decide whether to scale, reflow or rebuild selected pages. You will make a small conversion sample, estimate the new page budget from real content, and identify when the cover must change. All dimensions and counts in the example are illustrative.
Gather the source and the new specification
Start with a copy of the editable document, linked images and fonts you are entitled to use. Keep the approved old PDF as a reference. Obtain the new trim size, safety and bleed requirements, available binding, paper and cover-template process from the printer.
If you only have a PDF, say so at the start. A PDF may be sufficient for a suitable unchanged-size reprint, but it is not the same as an editable layout with flowing text. Reconstructing pages from a PDF can introduce text, font and reading-order errors. Do not promise a clean resize before examining the actual file.
Calculate what proportional scaling would do
To fit an 8 × 10 inch page inside a 6 × 9 inch page without cropping, choose the smaller ratio:
Scale = minimum of (6 ÷ 8) and (9 ÷ 10) = 0.75, or 75%.
The old page becomes 6 × 7.5 inches. If centred on the new page, it leaves 1.5 inches of unused height, or 0.75 inch above and below. This calculation ignores new binding and bleed requirements, which may impose further constraints.
| Original element | After 75% scaling | Question to check on paper |
|---|---|---|
| 12 pt body text | 9 pt | Can the intended reader comfortably read it? |
| 9 pt caption | 6.75 pt | Is essential context now too small? |
| 0.5 inch inner margin | 0.375 inch | Does it still satisfy the new binding requirement? |
| 0.4 pt rule | 0.3 pt | Does it remain reliably visible? |
| 4 inch photograph | 3 inches | Are faces, labels or fine details still useful? |
Filling the new page instead would require 90% scaling by height. The old width would become 7.2 inches, wider than the 6-inch page, so content would be cropped. Stretching width and height by different factors distorts the design. These are different operations; neither is a substitute for checking the book.
Choose the conversion method by content
Use proportional scaling only when a physical sample shows that type, details and margins remain suitable, and the production geometry is correct. A mostly image-led page with ample margins may tolerate it better than a dense reference page.
Reflow continuous text at an independently chosen readable type size. Let line breaks and pagination change. For mixed pages, keep important image details large enough and move captions or supporting text as needed. A landscape photograph may need its own page rather than sharing a narrow column; see the fit, crop and spread comparison.
Rebuild charts, maps and tables when simple shrinking makes labels unreadable. Removing a column, splitting a table or moving a key may be more effective than reducing the type. If the layout depends on a precise facing-page relationship, review the whole spread after each change.
Convert a representative section first
Choose a sample containing an ordinary text page, the longest caption, a difficult table and a large photograph. Make the new document at the intended trim size and establish its margins. Place or flow the content again at suitable sizes. Do not try to preserve the old page count during this first pass.
Mark every piece of content with a temporary identifier in your working notes: T01 for a text section, I01 for an image, C01 for its caption. Check the old PDF against the new sample so that a paragraph disappearing into overflow is not mistaken for successful compression.
Record what changed. “Table T04 needs two pages; photo I07 now has a full page; body text remains at the tested size” is a useful conversion note. “Looks smaller but okay” is not enough to guide the rest of the book.
Estimate the new page budget from the sample
Suppose a fictional 48-page book has 8 pages of front/back matter, 24 pages of prose, and 16 illustrated pages. In a trial using representative content, four old prose pages occupy five new pages, while four old illustrated pages occupy six. These are demonstration results, not a prediction for your book.
| Section | Working estimate | Estimated new pages |
|---|---|---|
| Front/back matter | Review separately; initially retain 8 | 8 |
| Prose | 24 × (5 ÷ 4) | 30 |
| Illustrated section | 16 × (6 ÷ 4) | 24 |
| Total | 8 + 30 + 24 | 62 |
This is a planning estimate. Chapter openings, tables, blank pages and allowed manufacturing increments can change it. Ask which final page counts are permitted for the selected product rather than assuming every binding needs multiples of four. Recalculate using additional samples if the remaining chapters differ greatly.
Blurb’s interview about multiple print formats describes text becoming difficult when a larger design was reduced. The useful lesson is to test content capacity. It does not establish that starting small is always best or that another provider’s formats are available here.
Review dependencies after the full reflow
- Confirm that every source section and image is present and in the intended order.
- Update the contents, index, internal page references and running headings.
- Inspect chapter starts and facing spreads. A changed page count can move a reveal to the wrong side.
- Check all image crops and effective resolution at their new placed sizes.
- Confirm the final interior count and paper before requesting or generating the new cover template.
- Rebuild cover positioning around that template, including spine, hinges or other required zones. Do not proportionally scale the old cover and assume it fits.
The cover is especially easy to overlook: a smaller book with more pages can need a different spine, not merely a smaller version of the original one.
Print the difficult pages and approve the new edition
Print the converted sample at actual size and read it at a normal distance. Check a full paragraph, the longest caption and the smallest meaningful label. If the print dialog scaled the pages, the sample is not valid for this decision.
Compare both versions side by side. If something became harder to use, decide whether it needs more space, simpler presentation or another page. Confirm production suitability with the printer, especially where binding or paper affects the result.
Save the smaller edition under a new release label and retain the old files. The book-file archive workflow helps keep both editions identifiable. For a file check, send the converted sample with the old and new trim sizes, proposed page count and the parts you are least certain about.