¿Imágenes demasiado grandes? Reduce su tamaño con Vista Previa

Caja Gigante

Las cámaras digitales actuales permiten hacer fotos de gran calidad, pero el tamaño es demasidado grande para enviarlas por e-mail o subirlas a Facebook. ¿Cómo podemos reducir su tamaño?

No nos hacen falta programas como Photosop, o GIMP. Con Vista Previa, que ya viene con nuestros Mac, nos bastará.

Para reducir el tamaño de tus fotos con Vista Previa, sigue estos pasos:

1. Abre la foto con Vista Previa

Pincha en la foto con el botón derecho y en el menú Abrir con.. elige Vista Previa.

2. En el menú Herramientas selecciona Ajustar tamaño

VistaPrevia Ajustar Tamaño

3. Cambia el tamaño de la imagen

VistaPrevia Dimensiones Imagen

En esta ventana podemos cambiar el tamaño de la imagen. El candado que aparece al lado de la anchura y altura indica que se respetarán las proporciones de la imagen, así que sólo tenemos que cambiar uno de los valores para que se modifique el otro.

Podemos ver que el tamaño de la imagen es bastante grande, 1600 píxeles de anchura. Valores que te pueden servir para enviar la imagen son 500 píxeles si queremos subirla a un sitio web o enviarla por e-mail, o un valor más grande, como 1280 píxeles de anchura, si queremos usar la imagen como fondo de pantalla.

Si lo necesitamos, podemos introducir valores para la anchura y la altura, sin respetar las proporciones, pinchando en el candado.

Al cambiar las proporciones se nos actualizará la información de la imagen, indicando cuánto ocupará.

VistaPrevia DimensionesImagen2

Así podemos observar que el tamaño de la imagen ha pasado de 485 KB a 57 KB, ¡casi 10 veces menos!

4. Guarda la imagen

Cuando pinchemos en aceptar, se cambiarán las dimensiones de la imagen. Si no queremos sobreescribir la imagen original, tendremos que guardar la actual con otro nombre, desde el menú Archivo, Guardar como.

Aquí podemos reducir todavía más la imagen. Si seleccionamos el formato JPEG o JPEG-2000 nos aparecerá un deslizador para elegir la calidad de la imagen. Podemos ajustarlo hasta que el tamaño de la imagen se ajuste a lo que necesitamos.

VistaPrevia FormatoImagen

¿Qué programa usas tú para reducir el tamaño de las imágenes? Compártelo con otros lectores en los comentarios.

17 Thoughts on “¿Imágenes demasiado grandes? Reduce su tamaño con Vista Previa

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  1. Karina on 3 August, 2015 at 9:30 PM said:

    Muy bueno!

  2. Buenazo! 1000 gracias

  3. ingrid on 16 January, 2016 at 5:45 PM said:

    exelente, me has salvado gracias

  4. Giuseppe on 28 June, 2016 at 7:50 PM said:

    GENIOS!! Infinitas gracias :)

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