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resources readme: remove license and copyright info

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Better to not repeat ourselves and present this info in example one place.
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James R. Barlow
2022-08-04 03:42:22 -07:00
parent 37c050aa4f
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.. SPDX-FileCopyrightText: 2022 James R. Barlow
.. SPDX-License-Identifier: CC-BY-SA-4.0
These test files are used in OCRmyPDF's test suite. They do not necessarily produce OCR results
at all and are not meant as examples of OCR output. Some are even invalid PDFs that might
at all and are not necessarily meant as examples of OCR output. Some are even invalid PDFs that might
crash certain PDF viewers.
Files derived from free sources
===============================
These test resources come from free sources, under either public domain or Creative Commons licenses.
In some cases they were converted from one image format to another without other changes.
Some of these images were obtained from the public domain. Others are copyrighted and may have
licenses associated. Refer to ``.reuse/dep5`` file in OCRmyPDF's Git repository for information on
the copyright holder(s) and license(s) applicable to these resources.
.. list-table::
:widths: 20 50 30
:widths: 15 35 50
:header-rows: 1
* - File
- Source
- License
- Purpose
* - c02-22.pdf
- `Project Gutenberg`_, Adventures of Huckleberry Finn, page 22
- Public Domain
- difficult OCR image (obscure fonts and illustrations)
* - congress.jpg
- `US Congressional Records`_
- Public Domain
- difficult OCR image (color background)
* - graph.pdf
- `Wikimedia: Pandas text analysis.png`_
- Public Domain
- image with slanted text
* - lichtenstein.pdf
- `Wikimedia: JPEG2000 Lichtenstein`_
- Creative Commons BY-SA 3.0
- JPEG2000 image
* - linn.png, linn.pdf, linn.txt
- `Wikimedia: LinnSequencer`_
- Creative Commons BY-SA 3.0
- image with two columns
* - typewriter.png, 2400dpi.pdf
- `Wikimedia: Triumph typewrtier text Linzensoep`_
- Creative Commons BY-SA 2.5
- simple text
* - baiona.png
- `Wikimedia: Baionako udalerri mugakideak`_
- Creative Commons BY-SA 4.0
* - enron1.pdf
- EnronData.org
- Creative Commons BY 3.0
Files generated for this project
================================
The following test resources were crafted specifically for this project, and are
licensed under the specified license.
.. list-table::
:widths: 20 40 15 15 10
:header-rows: 1
* - File
- Purpose
- Contributor
- Copyright Holder
- License
- multilingual text and images
* - aspect.pdf
- synthetic
- test image with 200 x 100 DPI resolution
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - blank.pdf
- synthetic
- blank PDF generated by Adobe Illustrator CC 17, containing a lot of application-specific metadata/bloat
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - cmyk.pdf
- synthetic
- a CMYK image created in Photoshop
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - crom.png
- synthetic
- test for non-dictionary words
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - enormous.pdf
- synthetic
- very large PDF page
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - epson.pdf
- synthetic
- a linearized PDF containing some unusual indirect objects, created by an Epson printer; printout of a Wikipedia article (CC-BY-SA)
- @lowesjam
- Wikipedia authors
- CC-BY-SA 3.0
* - formxobject.pdf
- synthetic
- hand-crafted PDF containing an image inside a Form XObject
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - francais.pdf
- synthetic
- a page containing French accents (diacritics)
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - hugemono.pdf
- synthetic
- large monochrome 35000x35000 image in JBIG2 encoding
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - invalid.pdf
- synthetic
- a PDF file header followed by EOF marker
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - kcs.pdf
- synthetic
- PDF file generated by Kodak Capture Desktop Software 1.2; has invalid table of contents
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - livecycle.pdf
- synthetic
- a minimal PDF that claims to use dynamic XFA forms
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - masks.pdf
- synthetic
- file containing explicit masks and a stencil mask drawn without a proper transformation matrix; printout of a German Wikipedia article (CC-BY-SA)
- @supergrobi
- Wikipedia authors
- CC-BY-SA 3.0
* - missing_docinfo.pdf
- synthetic
- PDF file with no /DocumentInfo section
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - overlay.pdf
- synthetic
- PDF file generated by PDFPen pro that triggered content stream parse errors
- @maxandersen
- @maxandersen
- CC-BY-SA 4.0
* - negzero.pdf
- synthetic
- copy of formxobject.pdf with token that qpdf doesn't like
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - no_contents.pdf
- synthetic
- synthetic PDF with a blank page that has no /Contents entry
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - truetype_font_nomapping.pdf
- synthetic
- example of a PDF with an embedded subsetted TrueType font with no Unicode mapping
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - trivial.pdf
- synthetic
- smallest possible valid PDF-1.3 with all required fields
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - type3_font_nomapping.pdf
- synthetic
- example of a PDF with an embedded subsetted TrueType font with no Unicode mapping
- @jbarlow83
- @jbarlow83
- CC-BY-SA 4.0
* - vector.pdf
- synthetic
- a PDF with vector art and text rendered as curves with no fonts
- @Catscratch
- @Catscratch
- CC-BY-SA 4.0
Assemblies
==========