Compress

Compress the selected image to reduce its data size and resize the image in the document.

La compressi贸 d'imatges 茅s un tipus de compressi贸 de dades aplicat a les imatges digitals per a reduir la mida de l'emmagatzematge o el temps de transmissi贸. La compressi贸 pot aprofitar la percepci贸 visual i les propietats estad铆stiques de les dades de la imatge per a preservar la qualitat de la informaci贸.

Image compression can be lossless or lossy. Lossless compression allows the original image to be perfectly reconstructed from the compressed data. In contrast, lossy compression permits reconstruction only of an approximation of the original image, therefore with some loss of quality, though usually with improved compression rates (and therefore reduced file sizes).

Per accedir a esta orde...

From the menu bar:

Choose Format - Image - Compress.

From the context menu:

Choose Compress.

From the tabbed interface:

On the Image tab, choose Compress.

On the Image menu of the Image tab, choose Compress.

From toolbars:

Icon Compress

Compress


Di脿leg Comprimeix la imatge

Compressi贸

Qualitat JPEG

Use the slider to adjust the level of quality of the JPEG compression, from 0 to 100. A value of 100 means no quality loss and a value of 0 may result in a very poor image. The default value of 90 produces very good results and significant image data size reduction.

note

Els valors de compressi贸 no estan harmonitzats entre els diferents programes de compressi贸 d'imatges JPEG que existeixen.


Compressi贸 PNG

Since PNG compression is lossless, the main reason to use a compression factor less than 9 is when there is absolute need to reduce the size of the document when saving in a slow computer. The uncompress operation does not depend on the compression level.

Resoluci贸

Redueix la resoluci贸 de la imatge

Check to change the dimensions of the compressed image.

Ampl脿ria, Al莽脿ria

Use the spin buttons to set the new width and height of the compressed image.

Resoluci贸

Select the pixel density (dot per inch - DPI) of the image from the dropdown list.

Interpolaci贸

Seleccioneu l'algorisme de c脿lcul dels p铆xels interpolats.

Informaci贸 de la imatge

Calcula la mida nova

Feu-hi clic per a calcular la mida de les dades de la imatge en funci贸 dels par脿metres triats al di脿leg.

Ens cal la vostra ajuda!