60 lines
3.1 KiB
ReStructuredText
60 lines
3.1 KiB
ReStructuredText
These test files are used in OCRmyPDF's test suite. They do not necessarily produce OCR results
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at all and are not meant as examples of OCR output. Some are even invalid PDFs that might
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crash certain PDF viewers.
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Files derived from free sources
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===============================
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These test resources come from free sources, under either public domain or Creative Commons licenses.
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In some cases they were converted from one image format to another without other changes.
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+---------------------+--------------------------------------------------------------------------------+
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| File | Source |
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+=====================+================================================================================+
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| c02-22.pdf | `Project Gutenberg`_, Adventures of Huckleberry Finn, page 22 |
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+---------------------+--------------------------------------------------------------------------------+
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| congress.jpg | `US Congressional Records`_ |
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+---------------------+--------------------------------------------------------------------------------+
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| graph.pdf | `Wikimedia: Pandas text analysis.png`_ |
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+---------------------+--------------------------------------------------------------------------------+
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| LinnSequencer.jpg | `Wikimedia: LinnSequencer`_ (Creative Commons Attribution-ShareAlike 3.0) |
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+---------------------+--------------------------------------------------------------------------------+
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Files generated for this project
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================================
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The following test resources were crafted specifically for this project, and can be used
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under the terms of the license in LICENSE.rst.
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- blank.pdf (a blank PDF page)
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- cmyk.pdf (a CMYK image created in Photoshop)
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- enormous.pdf (a very lage page)
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- francais.pdf (a page containing French accented characters)
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- invalid.pdf (a PDF file header followed by EOF marker)
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- missing_docinfo.pdf (PDF file with no /DocumentInfo section)
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Assemblies
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==========
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These test resources are assemblies from other previously mentioned files, released under the same license terms as their input files.
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- cardinal.pdf (four cardinal directions, rotated copies of LinnSequencer.jpg)
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- ccitt.pdf (LinnSequencer.jpg, converted to CCITT encoding)
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- graph_ocred.pdf (from graph.pdf)
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- jbig2.pdf (congress.jpg, converted to JBIG2 encoding)
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- multipage.pdf (from several other files)
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- palette.pdf (congress.jpg, converted to a 256-color palette)
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- skew.pdf (from c02-22.pdf)
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- skew-encrypted.pdf (skew.pdf with encrypted applied)
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.. _`Wikimedia: LinnSequencer`: https://upload.wikimedia.org/wikipedia/en/b/b7/LinnSequencer_hardware_MIDI_sequencer_brochure_page_2_300dpi.jpg
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.. _`Project Gutenberg`: https://www.gutenberg.org/files/76/76-h/76-h.htm#c2
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.. _`US Congressional Records`: http://www.baxleystamps.com/litho/meiji/courts_1871.jpg
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.. _`Wikimedia: Pandas text analysis.png`: https://en.wikipedia.org/wiki/File:Pandas_text_analysis.png |