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UD Audio Embed
ProFree during beta
Embed an audio file directly into a Universal Document™ as a content object. The audio travels with the document — no external links, no missing files. Max 50 MB.
Document *
Drop .uds file
Audio file *
Drop .mp3 .wav .m4a
Runs in your browser. Audio encoded as base64. Part of the Universal Document™ ecosystem.
How UD Audio Embed differs from PDF attachments and cloud audio links
PDFs can attach files, but attachments are stripped by email clients and cloud storage. Cloud audio links break when the hosting service changes. UD Audio Embed makes the audio inseparable from the document.
PDF with audio attachment
Acrobat Pro can attach files to PDFs, but most email clients strip attachments on PDF forwarding, and cloud storage often ignores embedded attachments. The audio is the first thing to get lost.
Hyperlink to cloud audio (SoundCloud, Google Drive)
The link works until the hosting service changes permissions, the account is deleted, or the file is moved. A document created today may have broken audio in two years.
UD Audio Embed — audio encoded inside the document
The audio is base64-encoded and written directly into the .uds file's metadata. There is no separate file, no external link, no hosting dependency. The audio is as permanent as the document itself.
UD Audio Embed — playable in UD Reader
UD Reader surfaces embedded audio as a playback element directly in the document view. Recipients don't need a separate audio player — open the .uds and the audio is there.