KB
100kb

Comprimir Firma

Optimice firmas y huellas dactilares bajo límites estrictos de tamaño. Limpie el contraste del fondo.

Cumplimiento de Requisitos

Compress and Clean Signature and Thumb Images under 20KB

Signature and left thumb impression uploads on exam portals usually have strict requirements, requiring files to be between 10KB and 20KB. Furthermore, shadow-heavy phone camera scans can result in low-contrast signatures which get rejected. Our tool lets you resize dimensions, increase contrast to create a clean white background, and compress files client-side to ensure compliance under 20KB.

Cómo usar Comprimir Firma

Siga estos sencillos pasos para optimizar sus archivos localmente:

1

Upload Signature Scan

Select the photo of your signature or thumb impression (captured on plain white paper).

2

Adjust Scale & Contrast

Clean up background shadows and scale to standard dimensions (e.g., 350x350 pixels or 140x60 pixels).

3

Download Signature JPG

Preview the file size to verify it is under 20KB, then download the optimized signature.

Preguntas Frecuentes

Preguntas comunes sobre seguridad de archivos y requisitos de portales:

Does this tool support left thumb impressions?
Yes. Left thumb impressions follow the same size guidelines (usually under 20KB) and clean background requirements as signatures. You can crop, clean, and compress them here.
What color ink should I use for signatures?
Most portals prefer black or blue ink on plain white paper. Avoid ruled paper or background shadows, as automated screening systems might reject them.
Will my signature lose its original lines?
No, the image compression algorithms preserve line outlines while shrinking the solid background data to keep the file size minimal.

Herramientas Relacionadas

Redimensionar Imagen

Comprima y redimensione imágenes a un límite de tamaño específico en KB. Perfecto para fotos de pasaporte y visados.

Combinar Foto y Firma

Combine una foto de pasaporte y una firma en una sola imagen de manera vertical u horizontal por debajo de 100KB.

Eliminar Fondo

Elimine fondos de fotos de pasaporte y reemplácelos con fondos estándar blancos o azul cielo completamente sin conexión.