Step 1: Upload your M4A files using the button above or by drag and drop.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Download your converted WMV files.
M4A to WMV Conversion FAQ
How do I turn a M4A audio file into a WMV video?
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PDF.to wraps your M4A audio into a WMV video with a static cover image (or a generated waveform) as the visual track. Upload the M4A, optionally drop in a cover image, and download the finished WMV.
Why would I convert M4A audio to a WMV video?
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A WMV video plays everywhere a raw M4A sometimes will not — most notably on video-only platforms and social feeds that require a video container. It is the standard way to publish a podcast, song, or mix as a shareable WMV.
What plays in the picture of the WMV?
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By default PDF.to shows a single still cover image for the full duration. You can upload your own artwork, or let the converter render an animated waveform that moves with the M4A audio.
Will the audio quality of my M4A change in the WMV?
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The M4A stream is re-encoded into the WMV container at a high audio bitrate (192 kbps AAC by default), so it stays effectively transparent for music and speech. Lossless M4A sources are not upsampled.
What resolution is the WMV video?
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The WMV matches the cover image you supply, defaulting to 1280x720. Because the picture is static, a higher resolution adds almost nothing to the file size — the bulk of a WMV made from M4A is the audio.
Can I set a custom thumbnail or cover for the WMV?
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Yes. Upload any JPG or PNG and PDF.to centers it on a solid background for the whole WMV. This is how you give a M4A track a branded video thumbnail.
Does the WMV keep the title and artist tags from my M4A?
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Where the WMV container supports metadata, title and artist tags from the M4A are carried over. The cover artwork embedded in the M4A is also used automatically if you do not supply your own.
Can I batch-convert many M4A files to WMV?
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Yes. Drop a folder of M4A files and each becomes its own WMV video; all of them are zipped for a single download.
Is the M4A to WMV conversion free?
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Yes for files under 100 MB. PRO unlocks larger M4A uploads (up to 5 GB), longer durations, and parallel jobs.
How long can the M4A be?
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Full-length albums and multi-hour M4A recordings convert fine. Because the picture is static, even a long WMV stays modest in size relative to a filmed video of the same length.
Will the WMV play on YouTube, Instagram, and TikTok?
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Yes. PDF.to encodes the WMV with a widely supported codec and pixel format, so the resulting video uploads cleanly to the major platforms that reject bare M4A audio.
Are my M4A files private during conversion?
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Uploads are encrypted in transit, the conversion runs in an isolated worker, and both the M4A and the rendered WMV are deleted automatically a short time after you download.