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Converts PDF to other file format (text, images, html). Collabora Online: MPLv2.0: Yes Yes Yes Android, iOS, iPadOS, ChromeOS and Online Yes Yes Import from PDF, export as PDF including PDF/A. Foxit Software: Proprietary: Yes Yes Yes Android, iOS, iPadOS and Online Yes Yes View, create, manipulate, print and manage files in PDF. GIMP: GNU GPL ...
VueScan is a computer program for image scanning, especially of photographs, including negatives. [4] It supports optical character recognition (OCR) of text documents. [5] [6] The software can be downloaded and used free of charge, but adds a watermark on scans until a license is purchased.
Another type of watermark is called the cylinder mould watermark. It is a shaded watermark first used in 1848 that incorporates tonal depth and creates a greyscale image. Instead of using a wire covering for the dandy roll, the shaded watermark is created by areas of relief on the roll's own surface.
DWG is merely descriptive of applicant's goods under Section 2(e)(1) of the Trademark Act for two reasons: (1) DWG is a recognized abbreviation for "drawing," and (2) .dwg is a file format used for computer-aided design (CAD) drawings made both with applicant's CAD software and others' CAD software. Autodesk appealed the decision.
A digital watermark is called imperceptible if the watermarked content is perceptually equivalent to the original, unwatermarked content. [7] In general, it is easy to create either robust watermarks or imperceptible watermarks, but the creation of both robust and imperceptible watermarks has proven to be quite challenging. [2]
LibreCAD is a computer-aided design (CAD) application for 2D design. It is free and open-source, and available for Unix/Linux, macOS, and Windows operating systems.. Most of the interface and handle concepts are analogous to AutoCAD, making it easier to use for users with experience in this type of commercial CAD application.
Google Drawings is a diagramming software included as part of the free, web-based Google Docs Editors suite offered by Google. The service also includes Google Docs, Google Sheets, Google Slides, Google Forms, Google Sites, and Google Keep. Google Drawings is available as a web application and as a desktop application on Google's ChromeOS.
Void pantographs work by exploiting the limitations and features of copying equipment. A scanner or photocopier will act as a low-pass filter on the original image, blurring edges slightly. It will also not be perfectly aligned with the directions of the document, causing aliasing. Features smaller than the resolution will also not be reproduced.
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