PDF Textfix: third-party notices

PDF Textfix contains the third-party software and data below. The licence and notice texts each
component requires are in this directory.

qpdf
qpdf 12.4.2, modified by Pocket Implementation (5 patches)
qpdf is copyright (c) 2005-2021 Jay Berkenbilt, 2022-2026 Jay Berkenbilt and Manfred Holger
Licence: Apache License 2.0 (qpdf-LICENSE.txt). qpdf's own notice: qpdf-NOTICE.md.
Linked statically. The modifications, each marked "Modified for PDF Text Editor" or "Added for
PDF Text Editor" in the patched source files:
- 0001 limit nested object resolution: past 100 nested resolutions an object is read as null.
- 0002 C API raw dictionary keys: functions that return every stored key with its length.
- 0003 restore the object description after a nested resolution, so warnings name the object.
- 0004 name the stream in the warnings raised while reading stream data.
- 0005 bound LZW output by the limit qpdf already applies to Flate.

libjpeg-turbo
libjpeg-turbo 3.2.0, unmodified, linked statically through qpdf.
Licences: the IJG licence and the BSD-3-Clause licence (libjpeg-turbo-LICENSE.md,
libjpeg-turbo-README.ijg).
This software is based in part on the work of the Independent JPEG Group.

Adobe Glyph List, Adobe Glyph List For New Fonts and ITC Zapf Dingbats Glyph List
Licence: BSD-3-Clause, with Adobe's copyright line (adobe-glyph-list-LICENSE.txt).

Adobe Core14 AFM files
Font metrics derived from the 14 AFM files. core14-afm-NOTICE.txt carries the terms paragraph of
core14-afm-MustRead.html and every distinct copyright line of the AFM files, verbatim;
core14-afm-MustRead.html holds the terms, unmodified.

Demo document fonts: IBM Plex Sans, IBM Plex Serif and IBM Plex Mono
Copyright © 2017 IBM Corp. with Reserved Font Name "Plex".
Licence: SIL Open Font License 1.1 (IBM-Plex-OFL.txt). The bundled sample PDFs embed subsets of
these fonts, which the app draws when it shows them; the app does not install them.

Sparkle
Sparkle 2.10.0, unmodified, embedded as Sparkle.framework.
Licence: MIT, with the licences of the code Sparkle includes (bsdiff, sais-lite, the portable
Ed25519 implementation and SUSignatureVerifier.m), all in sparkle-LICENSE.txt.
