Concretely, a horizontal or vertical flip is applied as a filter, which needs a re-encode because the coded frames themselves change. You choose the axis: horizontal produces a mirror image, vertical produces an upside-down reflection, and the whole file is transformed on it.
ווען װעל איך װײַזן אױף דעם װײַז־פֿאַרב אין דער װײַז־װײַז־װירע?
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טעקסט פֿאַרבimage-action
קען איך װײַזן אַ סך טעקע־נאָמען אין אַ מאָל?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
Uploaded files are processed on our own conversion servers, nobody looks at them, and they are not shared. The upload and the converted file are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
It depends on the formats. A lossless target such as PNG, WAV or FLAC keeps what the source holds; a lossy target such as JPG, MP3 or MP4 is usually re-encoded, which trades some detail for a smaller file.
