With Previews, you can see the content of a transfer before downloading it. No more cluttering your desktop with multiple versions of files just to figure out which one is correct. This feature is perfect for quick checks, version control, and saving time, especially when you’re working on the go.
Built with mobile users in mind, Previews makes it easy to view, locate, and save files directly from your phone or tablet—so you can decide exactly what to download, wherever you are.
Which files can be previewed
We currently support a wide range of popular formats, with some limits:
Images: JPEG, PNG, GIF, TIFF, HEIC/HEIF (iPhone), PSD/PSB (Adobe Photoshop), ARW (Sony), NEF (Nikon), CR2/CR3 (Canon), DNG (Adobe), RAF (Fujifilm), RW2 (Panasonic), ORF (Olympus), DCM (Medical Imaging) - up to 256 MB per file
Vectors: AI (Adobe illustrator) - up to 256 MB per file
iPhone (HEIC/HEIF) — up to 256 MB per file
Videos: MP4, MOV — up to 300 MB per file
Audio: MP3, WAV — up to 300 MB per file
Documents: PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, RTF, ODT, ODS, CSV, TXT— up to 256 MB per file
FAQs
Why can't I preview my transfer?
If you don't see a preview of your files, it could be because:
Your transfer contains more than 300 files.
When a transfer has 301–1000 files, you’ll still see an Open Preview button and can navigate the file structure in the preview UI. However, the files will appear as unsupported, so you’ll only see file names and sizes, no previews.
For files above 1000, the preview is not available.
- The transfer contains incompatible file formats, or files have an incorrect extension
- The files are too large (exceeding the preview size limits above)
Make sure your transfer fits within these limits to enable previews for your recipient.