Copyright (c) 2015 TDF Software
Written by Larry Bank
FIV allows you to view a wide range of image files on your iOS mobile device. It is designed to load images quickly and efficiently even on less powerful devices. FIV can be used to view photos, but it's best for viewing more "difficult" files such as multi-page TIFF, DICOM, animated images, legacy formats and special formats (e.g. WinFAX, JEDMICS, CALS). FIV excels at viewing giant bitonal images (e.g. engineering drawings, well logs). If your device supports 3D-touch, FIV supports quick-actions, peek/pop and accelerated panning based on the touch pressure.
When starting FIV, the first view displays a list of recently viewed images (bookmarks). The first item in the list is the most recently viewed file. To begin viewing images, click on the cloud icon to open images from cloud service providers, the camera roll icon or the clipboard icon to view an image stored in the clipboard. The bookmark list supports the 3D-touch peek and pop actions. A long press will bring up an alert window which allows deleting of the current bookmark or all of the bookmarks. FIV supports multiple sizes of thumbnail images; choose the size by clicking on the cog icon on the toolbar. By default, FIV keeps a temporary copy of files from cloud service providers. These files get deleted when the bookmark is deleted. If this option is disabled (in the Settings), bookmarks of images opened from cloud service providers (or the camera roll) can become disabled if the image is renamed or deleted. In this case, when the bookmark is selected, FIV will remove it and display a message confirming its removal.
If the "show zoom" option is enabled, the zoom % will display as large digits when changing the zoom level. These digits will fade after a few seconds.
The file information window displays general and specific information about the current image page. The color bar in the first column indicates the type of information (green = general, blue = EXIF, red = GPS). If GPS information is present, the "show on map" button will be enabled. Pressing this button will open the Apple map application with a thumbtack indicating where the photo was taken. The "share" button will share an image of the file information list.
The following options are available from the settings window:
Q: Why does FIV display some PDF files incorrectly or not open them?
A: FIV does not implement a complete PDF viewer and can only view PDF files containing scanned images, not text or vector graphics.
Q: Why doesn't FIV open
my email attachment
A: iOS doesn't handle email attachments gracefully (especially if they're in an unrecognized format); if they can't be copied to the clipboard or saved to the camera roll, then they need to be stored on a cloud storage service to be accessed by FIV.
Q: A supported image
file is not displayed
correctly; what can I do?
A: Please send any images which don't display correctly to email@example.com and we will correct the problem as quickly as possible.
|TIFF||All compression types and bit depths, multiple strips, tiles and pages.|
|JPEG||baseline 8-bit gray and 24-bit color, normal (FFC0), progressive (FFC2), lossless (FFC3), extended (FFC1)|
|PNG||All bit depths and options including animated|
|BMP||Windows and OS/2, uncompressed and RLE compressed, all bit depths|
|GIF||All bit depths and options including animated|
|FLI/FLC||8-bit palette color FLI and FLC (animated)|
|Scanned images only (no text or vector graphics), FLATE/G3/G4 compression|
|CALS||Type 1 (all) and Type 2 (non-tiled)|
|JEDMICS C4||All options|
|FAX||BitFAX, WinFAX, Quicklinks plus additional undocumented files|
|TARGA||All bit depths, both uncompressed and RLE compressed|
|AWD||Microsoft "At Work" FAX, bilevel scanned images|
|IOCA/MODCA||Bilevel scanned images|
|FILE MAGIC||Westbrooke Technologies (*.MAG) scanned images|
|PCX/DCX||All bit depths, single and multiple pages|
|DICOM||single or multi-image (animated), uncompressed, RLE, JPEG baseline, progressive, lossless, extended|
|PBM/PGM/PPM||Portable pixmap images (types P4/P5/P6 = 1bpp, 8bpp, 24bpp)|