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According to a 30 under 30 listing on Forbes QuillBot has a user base that includes both free and premium subscribers. The listing also states that in August 2023, QuillBot was acquired by Course Hero. [5] On August 21, 2021, Course Hero published an announcement stating it had acquired QuillBot. [6]
Default PDF and file viewer for GNOME; replaces GPdf. Supports addition and removal (since v3.14), of basic text note annotations. CUPS: Apache License 2.0: No No No Yes Printing system can render any document to a PDF file, thus any Linux program with print capability can produce PDF files Pdftk: GPLv2: No Yes Yes
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One can write a somewhat complete formal grammar for a natural language, but there are usually so many exceptions in real usage that a formal grammar is of minimal help in writing a grammar checker. One of the most important parts of a natural language grammar checker is a dictionary of all the words in the language, along with the part of ...
When Apple developed "a system-wide spelling checker" for Mac OS X so that "the operating system took over spelling fixes," [16] it was a first: one "didn't have to maintain a separate spelling checker for each" program. [17] Mac OS X's spellcheck coverage includes virtually all bundled and third party applications.
One aggravating factor is that a PDF reader can be configured to start automatically if a web page has an embedded PDF file, providing a vector for attack. If a malicious web page contains an infected PDF file that takes advantage of a vulnerability in the PDF reader, the system may be compromised even if the browser is secure.