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The dog and handler walk across a length of a new, unknown surface. The standard surface is a 3 metre long by 1 metre wide plastic roof sheet. It is set up between two fences so that the dog cannot avoid walking on the roof sheet, and so that it moves noisily when stepped on. [14] The dog's anxiety of walking on a new surface is measured. [3]
PDFtk (short for PDF Toolkit) is a toolkit for manipulating Portable Document Format (PDF) documents. [ 3 ] [ 4 ] It runs on Linux , Windows and macOS . [ 5 ] It comes in three versions: PDFtk Server ( open-source command-line tool ), PDFtk Free ( freeware ) and PDFtk Pro ( proprietary paid ). [ 2 ]
PDFVue: a free web application that allows the user to view PDFs, comment and fill PDF forms from a web browser. Generates a watermark. Smallpdf: Free (trial) web-based PDF software for editing, signing, compressing, merging, splitting, rotating, unlocking and protecting PDF files.
A drawing by Konrad Lorenz showing facial expressions of a dog - a communication behavior. X-axis is aggression, y-axis is fear. Dog behavior is the internally coordinated responses of individuals or groups of domestic dogs to internal and external stimuli. [1] It has been shaped by millennia of contact with humans and their lifestyles.
Although little data exists regarding the safety of FRAPs, ethologist Marc Bekoff has suggested that dogs should be allowed to freely engage in them as long as the dog is in a safe area and will not harm others or themselves. [9] Likewise, FRAPs are normal and healthy behavior for cats as well. [6] They are referred to as "cat zoomies". [10]
Skim is an open-source PDF reader. It is notably the first free software PDF reader for macOS. [2] It is written in Objective-C, and uses Cocoa APIs. It is released under a BSD license. It is also cited as being able to help annotate and read scientific papers. [3]
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This is a category of articles relating to free software for making or viewing Portable Document Format (PDF) documents. That is, software which can be freely used, copied, studied, modified, and redistributed by everyone that obtains a copy. Typically, this means software which is distributed with a free software license, and whose source code ...