Overview

MyMediaBox (MBX) allows you to upload many different file types.
However, previews (such as thumbnails and markup views) are generated only for supported file formats.

Previews may appear in the following locations:

  • Project list (thumbnail view)

  • Markup view (zoomable preview)

  • Project reports

Preview Features

Thumbnails

For supported file formats, MBX automatically generates thumbnails in the following sizes while preserving the original aspect ratio:

  • Up to 2560 × 2560

  • 1600 × 1600

  • 150 × 150

  • 120 × 120

These thumbnails are used across the interface, including project lists and reports.

Zoom & Markup

For supported image and document formats, MBX uses Deep Zoom technology, enabling:

  • Smooth zooming

  • Image rotation

  • Accurate markup and annotations

Supported File Formats for Preview

Images

  • JPEG

  • PNG

  • GIF

  • BMP

  • TIFF

  • WEBP

Other common raster image formats are also supported.

Microsoft Office

Word

Supported formats:

  • .docx

  • .doc

  • .dotm

  • .rtf

  • .txt

  • .html

Excel

Excel files do not have a dedicated preview available.

PowerPoint

Supported formats:

  • .pptx

  • .pptm

  • .potx

  • .potm

⚠ Note

The following files will not generate previews:

  • Password-protected files

  • Files requiring special access permissions

PDF and Vector Formats

  • PDF

  • SVG

Adobe Files

Illustrator

  • .ai

  • .eps

Photoshop

  • .psd

  • .psb

Note: PSB files are supported in DAM, but preview generation may be limited and may not always succeed.

Video and Audio Files

Examples of supported upload formats include:

  • MP4

  • MOV

  • AVI

  • WMV

  • MKV

  • WebM

However:

  • Preview generation is limited or not supported

  • Thumbnails or markup previews may not be available

If video preview functionality is required for your workflow, please contact MBX Support.

File Name Limitations

Maximum file name length:

100 characters

Allowed characters include:

  • Letters

  • Numbers

  • Selected special characters

If a file name exceeds 100 characters:

  • The file can still be uploaded

  • Preview generation will not occur

Regenerating a Preview

If a preview is missing, you can regenerate it by clicking the “Regenerate” button.

File Size Considerations (DAM)

MBX does not enforce a strict file size limit for uploads or downloads.

However:

  • High-resolution files may take longer to upload or process

  • Extremely large files may impact performance and user experience

Recommendations

  • Use optimized image formats when possible

  • Avoid unnecessarily large files

  • Test large assets in advance when onboarding new content

PowerPoint Font Considerations

If a PowerPoint file uses fonts that are not available in the conversion environment:

  • Text will be rendered using Microsoft Sans Serif as a fallback

  • The preview layout may differ from the original file

Recommendations

  • Embed fonts when saving PowerPoint files

  • Use widely supported fonts

  • Convert to another format if necessary

Preview Generation Notes

Even for supported formats, preview generation may occasionally fail.

If this happens, try regenerating the preview.

If you have any questions, please contact MBX Support.