Do You Need Text Recognition? Recognize text

FTS to EPUB Converter

Switch from FTS to EPUB seamlessly online

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Browser-Based Tool

No downloads or installations needed — open the converter in your browser and convert FTS to EPUB instantly from anywhere.

Visual Fidelity

Your FTS imagery is carefully converted to EPUB with maximum quality retention. No unnecessary degradation during the transformation process.

Cloud-Powered

All FTS to EPUB processing runs on remote servers. Your device stays unburdened — no CPU drain, no storage consumed during conversion.

How to convert FTS to EPUB

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose epub or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your epub file right afterwards

About formats

FTS is a file extension for the Flexible Image Transport System (FITS), the standard data format used in astronomy since 1981 when it was defined by Don Wells, Eric Greisen, and R.H. Harten at the National Radio Astronomy Observatory, and subsequently endorsed by the International Astronomical Union in 1982. FITS was designed from the outset as a self-describing archival format: each file begins with one or more 2880-byte header blocks containing ASCII keyword-value pairs that describe the data's dimensions, coordinate system, observation parameters, and provenance, followed by data blocks in a variety of numeric types — 8/16/32/64-bit integers and 32/64-bit IEEE floating-point values. FITS supports multi-dimensional arrays (images, data cubes, hypercubes), binary tables for catalog data, and ASCII tables, with multiple Header/Data Units (HDUs) that can coexist in a single file. The format handles specialized astronomical data: spectral cubes, radio interferometry visibilities, multi-extension mosaic images from CCD arrays, and time-series photometry. One advantage is scientific rigor: FITS mandates that all metadata needed to interpret the data physically — coordinate transformations (WCS), photometric calibration, telescope and instrument parameters — travels with the file, eliminating the metadata-loss problem that plagues general-purpose image formats in scientific contexts. The format's longevity and institutional backing is another strength — virtually every observatory, space telescope (Hubble, James Webb, Chandra), and astronomical software package (DS9, IRAF, Astropy) uses FITS as its primary data format.
Developer: NASA / IAU
Initial release: 1981
EPUB (Electronic Publication) is an open ebook standard originally developed by the International Digital Publishing Forum (IDPF) and now maintained by the W3C following the organizations' merger in 2017. The first version carrying the EPUB name was approved in October 2007 as a successor to the Open eBook Publication Structure (OEBPS). An EPUB file is essentially a ZIP archive containing XHTML or HTML5 content documents, CSS stylesheets, images, fonts, and metadata organized according to the Open Packaging Format and Open Container Format specifications. The current major version, EPUB 3, supports reflowable and fixed-layout content, embedded multimedia, JavaScript interactivity, MathML equations, and rich accessibility features including semantic markup and media overlays for synchronized text and audio. A defining advantage is universal device support — unlike proprietary formats, EPUB works natively on virtually every non-Kindle e-reader, tablet, and reading application, from Apple Books and Google Play Books to Kobo and dozens of third-party apps. The reflowable text model is another core strength, automatically adapting pagination, font size, and margins to match any screen dimension and user preference. EPUB's open specification and active W3C stewardship ensure long-term preservation and vendor independence, making it the de facto standard for digital publishing across libraries, academic institutions, and commercial retailers worldwide.
Initial release: October 2007

Frequently Asked Questions

Why convert FTS to EPUB?

Most people lack software for FTS. Converting to EPUB ensures your astronomical images are viewable everywhere — from phones to desktops.

What programs open EPUB?

Use Calibre, Kindle apps, Apple Books, or any compatible e-reader device to open EPUB — a common ebook format.

Can I batch convert FTS to EPUB?

Yes — Convertio supports batch uploads. Add multiple FTS images and convert them all to EPUB at once to speed up your workflow.

How long does the conversion take?

Most FTS to EPUB conversions finish within seconds. Larger or more complex images may take slightly longer depending on the data size.

What platforms are supported?

The converter works on any device with a browser — Windows, macOS, Linux, iOS, Android. No platform-specific software needed.

Is the output quality comparable?

The conversion extracts the best possible quality from your FTS data. The EPUB output reflects the format's capabilities accurately.