Prepare Mirrored Transfer Artwork

For a transfer material that requires mirroring, reverse artwork horizontally, add an opaque matte and equal outer padding as one PNG.

Image processing stays in this browser; runtime assets load by GET. Original downloads retain their source bytes and metadata. Re-encoding is not a redaction, secure-erasure or anonymity guarantee.

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About this flow

Prepare a horizontally mirrored PNG only for a material whose instructions require it. Flatten transparency onto your chosen matte and add equal pixel padding without resizing. Review the finished copy and avoid a second printer or software mirror.

Limitations

One static PNG/JPEG/WebP,1MiB,4MP,8192pixels per side. Every output must fit the same geometry bounds.
Opaque PNG output with fixed horizontal reversal and integer0–2048pixel padding; no resizing, cut paths, physical sizing or bleed calibration.
An admitted source can produce oversized padding; the real failure retains the last completed checkpoint.
Only use when the material explicitly requires mirroring. Some printable iron-on must not be mirrored; software can also mirror automatically.
No arbitrary-source color fidelity, ICC matching, printer/material compatibility or successful physical transfer guarantee.
No physical transfer or material/printer compatibility proof.