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Bulk M4P to PGM Converter Online — Free HD Quality

Drag and drop your multiple M4P files into this free online M4P to PGM converter (.m4p to .pgm), and click the Convert button to bulk convert them to PGM format in HD quality. Use the quality slider to fine-tune your PGM output, then download your converted files one by one or as a single ZIP — your original M4P files are removed from our servers right after.

To:
85%

Drop images here or click to browse

PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more

Max 100MB per file

M4P vs PGM — File Format Comparison

Feature M4P PGM
File Extension .m4p .pgm
MIME Type audio/mp4 image/x-portable-graymap
Compression Type Lossy Lossless
Metadata Support Yes Yes

What Is M4P Format?

Protected MPEG-4 Audio — Apple's FairPlay DRM-protected AAC format used in early iTunes Store purchases; non-DRM M4P files (iTunes DRM removal, 2009) can be converted, but actively DRM-locked files will fail.

  • Compression: Lossy
  • Tags & Metadata: Supported

What Is PGM Format?

Portable Graymap format for grayscale images.

  • Compression: Lossless
  • Tags & Metadata: Supported

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