PBM (Portable Bitmap) is a simple black-and-white image format from the Netpbm family.
OTG is the OpenDocument format for graphics/drawing templates.
FreeFileConvert uses tuned encoding for PBM to OTG conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload PBM files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized OTG results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent OTG audio with dependable progress tracking.
PBM files use ASCII or binary format with 1-bit color (black and white only).
OTG files contain reusable drawing templates with styles and objects.
Upload your image file in the PBM format from your device, Dropbox, or Google Drive.
Select OTG as the output format and click Convert. Adjust optional settings if needed.
Download the converted vector file. Each file stays available for up to 5 downloads.