Arcane Marks is described as 'Redact & Annotate images. Hide or mark up essential parts of your image by simply clicking and dragging on it' and is an app. There are more than 100 alternatives to Arcane Marks for a variety of platforms, including Windows, Mac, Linux, Android and Flathub apps. The best Arcane Marks alternative is Okular, which is both free and Open Source. Other great apps like Arcane Marks are IrfanView, XnView MP, ImageGlass and nomacs.
QuickViewer is a graphic image viewer for comfortable browsing of many images. This software performs reading of image data in advance. And drawing the imported image data on the screen with OpenGL. You can browse images with much smoother response than ever before.
Japan
feh is an X11 image viewer aimed mostly at console users. Unlike most other viewers, it does not have a fancy GUI, but simply displays images. It is controlled via commandline arguments and configurable key/mouse actions.
Germany
EU
qpdfview is a Qt-based tabbed document viewer using the Poppler library for PDF rendering and CUPS for printing. Support for the DjVu and PostScript formats can be added via plugins.
GermanyEU
Atril is a simple multi-page document viewer. It can display and print PostScript (PS), Encapsulated PostScript (EPS), DJVU, DVI, XPS and Portable Document Format (PDF) files. When supported by the document, it also allows searching for text, copying text to the clipboard...
Universal Viewer is an advanced file viewer for wide range of formats. Supported file formats are:
Russia
Provides editing of text, images, and objects in PDFs, annotation options, OCR for scanned files, conversion to multiple formats, form filling and signing, page management, merging and splitting, cloud integration, camera to PDF functionality, and sharing tools.
China
NX Studio is a computer software that allows users to enjoy the viewing, processing, and editing of still images and video, and provides more intuitive operation.
Japan
Seamlessly browse and share images directly from your menu bar application, with support for tagging, searching, and drag-and-drop functionality. Experience full keyboard control and effortless integration with the pasteboard, enabling automatic image collection and streamlined workflows.
Geeqie is a free open software image viewer and organiser program for Linux, FreeBSD and other Unix-like operating systems.
CzechiaEU
Besides exceptionally fast launching and displaying speed, Gaaiho Reader is reliable in printing, filling forms annotating documents and adding bookmarks.
Taiwan
In version 8, Google Chrome introduced a free PDF viewer, installed by default. While this plug-in lacks many features of the Adobe Acrobat Plug-in, it is much faster and lighter, and updates with the browser rather than an external utility.
United States
Xviewer is a simple image viewer which uses the gdk-pixbuf library. It can deal with large images, and zoom and scroll with constant memory usage. Its goals are simplicity and standards compliance. Xviewer is installed by default in Linux Mint.
IrelandEU
