InDesign & DOCX
Supply your InDesign package or editable Word files, together with images, metadata and publisher guidelines. Include fonts where you have permission to use them in the ebook.
Trusted by 30+ Global Publishers Since 2014
EPUB Conversion & Accessibility for Publishers
PublishContent.Digital provides EPUB 3 conversion for publishers and digital reading platforms. Our India-based team produces reflowable, fixed-layout, accessible and read-aloud EPUB files from your source content, with final files delivered directly to you. Start with a free sample conversion.
Fixed Layout ePub3
Reflowable ePub3
Accessible ePub
Read Aloud ePub
NIMAS Conversion
10+
Years in business
30+
Global publishers
4 hr
Response time
Request Your Free Pilot
Share representative sample content so we can agree a free pilot and confirm the production approach.
Request a Free Pilot →No commitment. Typical response within 4 business hours.
EPUB Services & Related Publishing Support
Choose the Format Your Content Needs
We agree the format, accessibility requirements and target reading systems before production, then check each title against your publisher specifications.
01
Fixed Layout ePub3
Fixed-layout EPUB 3 preserves the arrangement of text and illustrations for children's books, illustrated titles, comics and educational content. Layout, fonts and spreads are checked in the agreed reading systems.
02
Reflowable ePub3
Text-first digital books that adapt fluidly to every screen size. Ideal for academic, trade and STM titles — including complex content with MathML, tables, footnotes and multi-level structure.
03
Accessible ePub
EPUB accessibility production and remediation covering semantic structure, headings, navigation, reading order, meaningful image descriptions and accessibility metadata. We agree the EPUB Accessibility 1.1 and WCAG 2.2 AA requirements with you at the sample review stage.
04
Read Aloud ePub3
Read-aloud EPUB 3 uses Media Overlays to synchronise supplied narration with text. Word or sentence highlighting is agreed for your content and target reading system. Suitable for children's books and educational titles.
05
NIMAS Conversion
Related service: NIMAS conversion of K-12 student instructional materials for NIMAC submission. PublishContent.Digital is an officially listed NIMAC vendor. NIMAS XML file sets are a separate deliverable from EPUB files.
10+
Years in ePub & NIMAS production
30+
International publishers served
EPUB 3
Reflowable & fixed-layout production
QC
Validation & publisher specification checks
Source Files & Content
From Your Source Files to Finished EPUB
We work with trade, academic, educational and illustrated content. Representative pages help us assess tables, footnotes, equations, images and complex layouts before production begins.
Editable PDF
We reconstruct the content structure and reading order for EPUB production, checking extracted text, illustrations, tables and notes against the source PDF.
Scans & Existing EPUB
Scanned material requires a separate OCR and text-correction assessment. Existing EPUB files can be reviewed for conversion updates, structural corrections or accessibility remediation.
Production Process
A Clear Process Before You Commit
The sample review establishes the production approach, quotation and turnaround. Each batch follows the requirements agreed with your team.
Review your sample
Share representative content, source formats, title counts, metadata, target platforms and your preferred deadline.
Agree the pilot and scope
We confirm the EPUB format, accessibility target, free sample scope and any OCR, audio or Kindle-specific requirements. You review the pilot before production.
Convert and check
Production follows the approved sample and publisher guidelines. QC covers content completeness, layout, navigation, links, metadata and the agreed reading systems.
Deliver your files
You receive the final EPUB files directly. For larger projects, we agree batch milestones and a feedback process around your publishing schedule.
Validation & Accessibility
Checks Matched to Your Publishing Requirements
EPUB structure and content
EPUBCheck validates EPUB format conformance. Our production QC also reviews the table of contents, internal links, images, tables, notes and metadata, with visual checks in the agreed reading systems.
Accessibility scope
Accessibility requirements are agreed against EPUB Accessibility 1.1 and the requested WCAG level. Review covers semantic structure, reading order, navigation, image descriptions and accessibility metadata. Automated validation alone does not establish full accessibility conformance.
Standards reference: W3C EPUB Accessibility 1.1 · WCAG 2.2 · EPUBCheck
Publisher Questions
EPUB Conversion FAQs
What source files can you convert to EPUB?
We accept InDesign packages, PDF and DOCX files. For InDesign, include linked images and licensed fonts where available. We can also assess scanned PDFs and OCR content; text recognition and correction are scoped separately after reviewing scan quality.
Should I choose reflowable or fixed-layout EPUB?
Reflowable EPUB suits books where readers need adjustable text size and a layout that adapts to their screen. Fixed-layout EPUB suits illustrated books where the relationship between text and images must be preserved. We recommend the format after reviewing representative pages and your platform requirements.
Do you deliver the final EPUB files for use on our own platform?
Yes. We deliver the completed EPUB files directly to you for your own publishing or distribution workflow. Share your platform specifications or a test environment so the pilot can be evaluated in your reading system before wider production.
Can we start with a small batch and scale up?
Yes. We can begin with a sample conversion and an initial batch, then plan further titles once you approve the format and quality. Share your expected title count, content types and release schedule so we can agree batch deliveries.
How do you prepare a quotation and turnaround schedule?
We review sample content, source-file quality, title and page counts, layout complexity, accessibility requirements and target platforms. After this review, we provide a project-specific quotation and production schedule. Send representative pages and your preferred deadline with your inquiry.
Can you improve the accessibility of existing EPUB files?
Yes. We review existing EPUB files and agree the required remediation. This may cover headings, navigation, reading order, image descriptions, tables, language identification and accessibility metadata, with the conformance target and testing scope confirmed before production.
Will the EPUB work with Kindle?
Tell us if Kindle is a required output. We assess the EPUB in Kindle Previewer against the agreed requirements. Complex layouts or font behaviour may require a separate Kindle-specific version; this is confirmed during the sample review.
What is included in the free pilot?
The pilot is a representative sample conversion with an agreed scope. It lets you review layout, structure and the proposed production approach before committing to the main project. Share sample content and your requirements so we can confirm the pilot deliverable.
Request a Sample Review
Send a sample file or download link, your source format, title count, required EPUB output, target platforms and preferred deadline. We will confirm the scope, quotation and turnaround after reviewing your content.
Discuss Your EPUB Project →Not sure we're the right fit? Let us prove it.
Send representative sample pages or a chapter. We will agree a free pilot sample so you can evaluate the conversion approach and quality before proceeding with production.
Start Your Free Pilot →Typical response: within 4 business hours
Talk to Us About Your Project
Share a sample file or download link, the number of titles, your required format, target platform and preferred deadline. We will review the content and confirm a project-specific quotation, production schedule and free pilot scope.
Email
pkumar@publishcontent.digital
Phone / WhatsApp
+91 86182 78508
Response Time
Within 4 business hours
Send Your Project Details
Free pilot included — no contract needed.