Supported Document File Types

UPDATED Feb 9th 2026

Max File Size

Files shared from Google Drive are subject to a max file size of 1GB, any larger files will show a 'file exceeds max file size' message in the document viewer and will not be available for download. Files shared from Dropbox do not have a limit on the file size.

Folders

Folders shared from Google Drive and Dropbox will only list the first 1000 sub folders and files and will be sorted by ascending name.

Adobe PDF

PDF files that are no larger than 50MB in size are supported for previewing & watermarking. PDF files that have a high degree of complexity (large number of fonts and complex elements) may also not be able to be previewed or watermarked. Any PDF's that can't be previewed won't be available for watermarking, and will default to allow the document to be downloaded (if enabled) in it's original format without a watermark.

⦁ pdf

Google Docs

Google Docs, Google Sheets and Google Slides that are not larger than 15MB (when exported) are supported for previewing & watermarking. Any Google files that can't be previewed won't be available for watermarking, and will default to allow the document to be downloaded (if enabled) in it's original format without a watermark. In addition, all Google files that are watermarked will only be available in a PDF format for downloading.

⦁ Google Docs

⦁ Google Sheets

⦁ Google Slides

Microsoft Office

MS Word and MS PowerPoint that are no larger than 50MB are support for previewing & watermarking. Office files that can't be previewed won't be available for watermarking, and will default to allow the document to be downloaded (if enabled) in it's original format without a watermark. In addition, all Office files that are watermarked will only be available in a PDF format for downloading.

*Note document fonts and formatting may not be exact in online previewing, we recommend converting to PDF before sharing for a better online preview

⦁ docx

⦁ pptx

Video

MP4 AVC videos that are no larger than 1GB are supported for previewing.

⦁ mp4 avc

Audio

MP3 audio files that are no larger than 100MB are supported for previewing. Note the embedded album art will be used as a preview image.

⦁ mp3

Images

Images that are no larger than 1GB with the following file extensions are supported for previewing

⦁ jpg

⦁ jpeg

⦁ png

⦁ tiff

⦁ tif

⦁ gif

⦁ bpm

Text & Code Files

Text files that are no larger than 30MB with the following file extensions are supported for previewing

⦁ txt

⦁ markdown

⦁ mdown

⦁ mkdn

⦁ md

⦁ c

⦁ coffee

⦁ cpp

⦁ css

⦁ diff

⦁ js

⦁ java

⦁ less

⦁ php

⦁ py

⦁ rb

⦁ sass

⦁ scss

⦁ sql

⦁ vb

⦁ htm

⦁ html

⦁ xhtml

⦁ xml

⦁ sh

*Any file type not specified above, or if they are over the max file size for previewing, will be available for download even if downloading is disabled.

This list can always be considered current and will be kept up to date.

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Check out tips for managing large files.