How to convert instruction manuals into EPUB with EPUBTurn

By EPUBTurn · Updated 7 October 2026

Follow a manual’s instructions and labelled diagrams. Follow the upload, sample and reader checks before deciding whether to convert more pages.

On this page

Start with the reading task
1. Choose an authorised PDF and keep the original
2. Upload your PDF with Choose a PDF
3. Create a free sample and check selected pages
4. Prepare the sample download
5. Download the EPUB and inspect it in your reader
Keep commands and code intact in a documentation reading copy
6. Decide whether to convert more pages
What the actual example establishes

Start with the reading task

EPUBTurn turns eligible PDFs into EPUB reading copies. This guide shows how to test an instruction manual through the displayed sample controls. Open the PDF upload page when your document is ready. Keep the source as the reference for the details described below.

1. Choose an authorised PDF and keep the original

Choose a manual from the equipment maker or another authoritative publisher. Save the original PDF before creating a reading copy. Check that the manual describes the correct model and revision; instructions for a similar model may be unsafe. Upload only material you are authorised to use. Identify one complete procedure, its warning and its matching diagram, rather than judging the conversion by an attractive opening page.

2. Upload your PDF with Choose a PDF

Go to the EPUBTurn upload screen and use Choose a PDF to select the manual. Confirm the displayed file is the intended revision. The current workflow accepts eligible PDFs up to 200 MB and full conversions up to 100 pages. A large service manual may be outside those limits. Keep the original available for schematics, measurements and safety instructions instead of treating an EPUB as a replacement for the manufacturer’s document.

EPUBTurn PDF upload control — Choose a PDF opens the file picker. Open full-size image

3. Create a free sample and check selected pages

Use Create free sample when the upload is accepted. Up to ten pages are selected automatically, so inspect the selection before deciding whether the procedure you need was included. A sample containing a diagram but omitting its warning cannot establish that the complete instruction reads correctly. Follow the selected procedure from its heading to the last action and compare any cross-reference with the corresponding PDF page.

EPUBTurn Create free sample button — Create free sample starts processing the automatically selected pages. Open full-size image

4. Prepare the sample download

After processing, select Create sample download if that control is shown. Wait for the resulting download control rather than assuming the preparation screen is the final reading file. Follow any review or error message on the actual screen. Do not fill a missing diagram or instruction from memory. If a required passage cannot be checked in the sample, record the gap and keep using the authoritative manual for that task.

5. Download the EPUB and inspect it in your reader

Choose Download sample EPUB, save the file and open it in your reader. Apple Books on Mac can import an EPUB through File > Import. Check whether each labelled component remains identifiable and whether the warning stays with the action it qualifies. Read numbered functions in their intended order at a larger font size. For Kindle, use an appropriate Send to Kindle route rather than assuming a raw EPUB copied by USB will open.

Download sample EPUB saves the prepared reading file. Open full-size image

Keep commands and code intact in a documentation reading copy

Software documentation adds a requirement beyond ordinary instructions: a space, quote mark or line break can change a command. Check whether the publisher already offers EPUB or a documentation site before converting a PDF. A native reading edition may preserve code and links better than a conversion from printed pages.

If PDF is the available edition, keep its software version and choose an authorised section containing a command, its explanation and any related diagram. Use EPUBTurn’s free sample and compare a complete command character by character. Check straight quotes, hyphens, indentation and wrapped lines. Do not copy a command from the EPUB into a terminal merely because the paragraph is readable.

Download the sample, enlarge the text and check where long code lines wrap. Try one internal section link and one external documentation link. A figure should remain associated with the procedure it explains. Our actual NASA output preserves selected hardware drawings and prose, but contains no tested software code block; no code-preservation result is claimed. Use the EPUB for reading explanations when the sample suits that task, and retain the original documentation for commands you need to execute.

6. Decide whether to convert more pages

Proceed to full conversion only if the screen offers the option and the sample supports your reading task. Sign in if requested and review the actual credit confirmation before continuing. Keep the PDF for precise diagrams and safety-critical instructions. A more comfortable reading layout does not certify the manual, the equipment or the safety of following a converted instruction.

What the actual example establishes

The actual NASA example uses six unchanged pages from a 1975 guidance-and-control report. Its normal EPUBTurn sample automatically included excerpt pages 4–6, corresponding to original PDF pages 6–8. Figure 2 retains six hardware drawings, labels and its caption. Abort Mode functions 1–5 remain in the text, although functions 1–4 are displayed as bullets and function 5 follows a page boundary as a paragraph. The earlier Figure 1 and opening pages were not selected. The result supports a narrow technical-reading check, not a claim that a complete modern manual or safety procedure was validated.

Actual NASA Figure 2 source, original PDF page 6. Open full-size image

Actual unedited NASA sample hardware picture and labels; three automatically selected pages from the six-page excerpt. Open full-size image

Files used in this guide

Download the source files, conversion results or worksheets referenced here. Each label identifies the source document or the converter used.

Actual six-page NASA source excerpt Actual three-page NASA EPUBTurn sample