PCT to MOBI Converter

Online PCT to MOBI converter — create e-books free

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Any Device Works

Run the PCT to MOBI converter from a desktop, laptop, tablet, or phone — all you need is a web browser and internet access.

Quality Preserved

The conversion transfers all pixel data from PCT to MOBI faithfully. No detail is lost during the format change.

No Installation

Everything happens in the browser. Open Convertio, upload your PCT file, and download the MOBI result — zero setup required.

How to convert PCT to MOBI

1

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

2

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

3

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

About formats

PCT (also known as PICT) is a metafile graphics format originally developed by Apple Computer and introduced alongside the original Macintosh in January 1984. PCT files can contain both vector drawing commands and raster bitmap data, encoded as a sequence of QuickDraw drawing operations — the same graphics primitives used by the Macintosh operating system for all on-screen rendering. The format evolved through two major versions: PICT 1, which recorded basic QuickDraw operations (lines, rectangles, ovals, text, 1-bit bitmaps) in a compact format suitable for the original Macintosh's limited memory, and PICT 2, introduced with Color QuickDraw in 1987, which extended the format to support 24-bit color, multiple color spaces, and embedded JPEG-compressed data. PCT files begin with a 512-byte header (originally used for resource fork information), followed by the picture size, bounding rectangle, and a sequence of opcodes that define the drawing operations. During the Macintosh's commercial ascendancy, PICT was the universal graphics interchange format on Mac OS — the system clipboard used PICT for all graphical copy/paste operations, and most Mac applications could import and export the format. One advantage is the hybrid vector/raster nature: PCT files from the QuickDraw era preserve both scalable drawing commands and pixel data in a single format, enabling resolution-independent output for the vector portions. PICT's historical significance as the native Mac graphics format throughout the classic Mac OS era (1984-2001) provides another dimension. PCT files remain readable by Preview) on macOS, ImageMagick, XnView, LibreOffice, and GIMP.
Developer: Apple Computer
Initial release: 1984
MOBI is an ebook format originally developed by Mobipocket SA, a French company founded in 2000 that was later acquired by Amazon in 2005. The format builds on the PalmDOC/PDB container structure, adding support for HTML-based content markup, embedded images, a DRM layer, and a JavaScript subset for limited interactivity. MOBI files use a record-based database architecture inherited from Palm OS, with a header structure containing metadata like title, author, publisher, and language followed by compressed HTML content records. The format became the foundation of Amazon's early Kindle ecosystem — the original AZW format used on first-generation Kindles was essentially MOBI with Amazon's own DRM wrapper. MOBI supports reflowable text with basic formatting including bold, italic, headings, lists, and tables, as well as internal hyperlinks and a built-in table of contents. One advantage is broad device compatibility: MOBI files are recognized by Kindle devices and apps spanning over a decade of hardware, as well as numerous third-party readers on desktop and mobile platforms. The format's lightweight structure is another strength — even long novels produce compact files that load quickly on modest hardware. While Amazon has since moved to the more capable AZW3/KF8 format for new publishing, MOBI remains widely circulated in existing ebook libraries and continues to be produced by conversion tools like Calibre for maximum Kindle compatibility.
Developer: Mobipocket SA
Initial release: 2000

Frequently Asked Questions

Why convert PCT to MOBI?

PCT is Apple's discontinued PICT format — converting to MOBI recovers graphics from legacy Mac documents so they work in modern applications.

What programs open MOBI files?

Amazon Kindle devices and apps, Calibre, FBReader, and Moon+ Reader.

What platforms are supported?

Any device with a web browser — Windows, macOS, Linux, iOS, Android, and Chrome OS. No software installation is needed for the conversion.

Are my files secure during conversion?

All file transfers use encrypted connections. Uploaded PCT files are deleted after processing, and MOBI outputs are purged within 24 hours.

Can I convert multiple PCT files at once?

Yes — Convertio supports batch uploads. Queue several PCT files and convert them all to MOBI in one session, saving time on repetitive tasks.

Are colors preserved during conversion?

Color data from the PCT file is mapped accurately into MOBI. The conversion maintains the original color profile as closely as the target format allows.