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Convert OPF to TCR

Convert OPF ebook documents to TCR format, edit and optimize documents online and free.

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Open Packaging Format (.opf)

The Open Packaging Format (OPF) is a critical component in the EPUB digital publishing standard, specifically designed for eBooks. OPF files serve as a manifest that organizes and structures the contents of an EPUB file, including metadata, the reading order, and resource files. This standard, introduced by the International Digital Publishing Forum (IDPF) in 2007, aimed to streamline the publication and distribution of eBooks, ensuring compatibility across various devices and reading software. The OPF's primary purpose is to enhance the accessibility and interoperability of digital content within the rapidly evolving landscape of electronic publishing.

OPF Converter More About OPF

Text Compressed for Readability (.tcr)

The TCR file extension stands for Text Compressed for Readability, originally used by Psion Series 3 palmtop devices in the early 1990s. It stores eBooks in a proprietary format that offers better compression than PalmDOC, making it suitable for the limited storage of handheld devices. Despite the discontinuation of Psion devices, TCR files can still be read using modern eReaders like Sumatra PDF.

TCR Converter

How to convert OPF to TCR?

  1. Upload OPF File

    Click the Choose File button to select the OPF file.

  2. Select OPF Tools

    Before clicking the Convert button, use any available OPF to TCR tools.

  3. Download Your TCR

    Wait a few moments for the converter to complete its job, then download your TCR file.

Convert OPF to TCR

Frequently Asked Questions

How to change OPF format to TCR?

To change OPF format to TCR, upload your OPF file to proceed to the preview page. Use any available tools if you want to edit and manipulate your OPF file. Click on the convert button and wait for the convert to complete. Download the converted TCR file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert OPF to TCR on macOS

Follow steps below if you have installed Vertopal CLI on your macOS system.

  1. Open macOS Terminal.
  2. Either cd to OPF file location or include path to your input file.
  3. Paste and execute the command below, substituting in your OPF_INPUT_FILE name or path. $ vertopal convert OPF_INPUT_FILE --to tcr

Convert OPF to TCR on Windows

Follow steps below if you have installed Vertopal CLI on your Windows system.

  1. Open Command Prompt or Windows PowerShell.
  2. Either cd to OPF file location or include path to your input file.
  3. Paste and execute the command below, substituting in your OPF_INPUT_FILE name or path. $ vertopal convert OPF_INPUT_FILE --to tcr

Convert OPF to TCR on Linux

Follow steps below if you have installed Vertopal CLI on your Linux system.

  1. Open Linux Terminal.
  2. Either cd to OPF file location or include path to your input file.
  3. Paste and execute the command below, substituting in your OPF_INPUT_FILE name or path. $ vertopal convert OPF_INPUT_FILE --to tcr

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