Output formats

21. May 2026

Fotoware Alto supports the following transformations. Below is an overview of possible output for the listed input file type and corresponding actions.

For information about the supported file formats in Fotoware Alto, see Supported file formats.

Fotoware Alto automatically modifies the following:

Rotate action — You cannot select this rotate action or define properties, as it is automatically applied with predefined settings in Fotoware Alto. Images are automatically rotated based on their Exif metadata. around 30% smaller than JPEGs

Color Conversion action — The color conversion action is automatically applied in Fotoware Alto when needed. This converts images from CMYK print to RGB web. You need to store your watermark image (PNG, GIF, TIFF) on an absolute path on the server.

The following table describes the available actions and possible outputs for image, vector, document, audio, and video files.

Input file type	Available actions	Possible outputs
Image	Watermark action — The watermark modification applies an image overlay. You need to store your watermark image (PNG, GIF, TIFF) on an absolute path on the server. Then you can define a distance from the four borders in pixels (margin-left, margin-top, margin-right, margin-bottom around 30% smaller than JPEGs). You can leave the margins empty. You must set the opacity (0.1 to 1) used for transparency and an aspect ratio - the ratio of the width of a shape to its height (e.g., 8:5, 16:10, and 1.6:1 are the same aspect ratio). Unsharp Mask action — The unsharp mask action allows unsharp masking based on the specified amount, radius, and threshold. The following values need to be defined: Amount of 1 to 500 percent, Radius of 0.1 to 1000.0 pixels, and a Threshold of 1 to 255 levels. Rotate action — You cannot select this rotate action or define properties, as it is automatically applied with predefined settings in Fotoware Alto. Images are automatically rotated based on their Exif metadata. Resize action — The resize modification resizes formats to a certain size. This is available for all file types (images, video, audio, and documents). Crop action — The crop action crops your rectangle to the specified dimensions, starting at the x:y coordinates. Alpha Handling action — The alpha handling modification handles alpha channels (transparency) in images, so transparency in PNGs is preserved when converted to JPGs (which have no transparency).	Original JPG PNG TIFF WebP WebP offers file sizes that are around 30% smaller than JPEG without a quality gap. It also provides transparency (alpha channel) like PNG and can animate images like the GIF format. Fotoware Alto only renders the first frame as a preview and does not create animated WebPs. AV1 Image File Format (AVIF) An image file format specification. AVIF supports animations, live photos, and more through multilayer images stored in image sequences. It offers better support for graphical elements, logos, and infographics, where JPEG has limitations. It provides better lossless compression than JPEG.
Vector	By applying a Temporary Still Format, all actions available for image type files can be used.	Original SVG PDF Temporary Still Format (rasterized image)
Document	By applying a Temporary Still Format, all actions available for image type files can be used.	Original PDF Temporary Still Format (rasterized image)
Audio	By applying a Temporary Still Format, all actions available for image type files can be used.	Original AAC MP3 Temporary Still Format (rasterized image)
Video	By applying a Temporary Still Format, all actions available for image type files can be used.	MP4 KeyFrame Image Temporary Still Format (rasterized image)

Output formats

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