Use the Images page of the 'Configuration' dialog to set up options common to image formats.
|•||Choose Configuration from the 'Options' menu (function key f8) and click the Images tab|
choose Export from the 'File' menu (Ctrl E) – see Image format file export. Select an image format such as BMP or PNG then click the Image options... button.
To set options for image import/export
|1.||Select an appropriate Output resolution; you may choose from several options optimized for archiving images, faxing, etc. or enter a custom resolution. See Image resolution.|
|2.||In certain cases when importing images for which the resolution is unspecified, it may be necessary to change the Input resolution from the default initial value of 300dpi.|
You may force the initial input resolution to be used throughout the job by ticking Override. This is generally inadvisable unless the resolution of the images is known to be wrong.
|3.||Select a compression format from the drop-down list.|
You may also choose to Omit blank pages to reduce the bulk of the document.
|o||Further compression options may be configured when exporting JPEG images in IDF, PDF, PDF/A, PostScript or JPEG format. See JPEG compression options.|
|4.||Select the 'Image' area of the page to be exported. Choose from:|
|o||Full Outputs entire page(s): this is the default (equivalent to Select all option on the 'Edit' menu or pressing Alt A).|
|o||Paper size only Outputs an area of each page the size of the sheet of paper.|
|o||Printable region only Only the area of the page(s) which the printer is actually able to print on is shown; on many printers this may be several cm smaller than the full size of the paper.|
|o||Printed region only Only the area of each page that is actually printed on.|
|o||Selected area only You can export just part of a page by sweeping out the area for outputting then choosing this option.|
|6.||A border may be added to the Image by entering the widths of the left, top, right, and bottom borders in the editable box, in order one after the other, separated by commas.|
If only one width is specified, EscapeE automatically sets all four borders to that width. If two widths are specified EscapeE automatically sets the left and right borders to the first width, and the top and bottom borders to the second width. (Borders are normally set to 0 dots.)
|o||Select the units as cm, inches or pixels.|
|7.||Set up the Final size for the image:|
|o||Check Scale to to shape the final image to an exact size; enter the width and height in the boxes.|
|o||Check Trim to to crop the final image to an exact size; enter the width and height in the boxes.|
You may choose to use cm, inches or pixels as the unit of measurement.
|8.||A default image Cache size of 10Mb will usually suffice, but this value may be edited if necessary.|
|9.||When the Use ICC profiles box is checked, any colors expressed in CMYK will be converted to RGB by the RedTitan Color Management System using an ICC color profile: see the RTcms Help file.|
Click the ICC configure... button to display the configuration dialog for RTcms; select a CMYK profile and the required rendering intent.
|10.||Some formats (e.g. PNG, TIFF) allow the white parts of an image to be treated as transparent instead of opaque. Select Transparent white checkbox for 'transparent' treatment; deselect for 'opaque' treatment. See also Handling graphics.|
|11.||You may tick the Force monochrome box to convert colors to 'black and white' or 'gray scale' images. Select a conversion method from the drop-down list of options:|
|o||Halftone (Default option.) The image is treated as if it were composed of blocks of pixels (block size 4x4 pixels). The average luminosity of each block is matched to a shade of gray with similar luminosity. Gray shades are actually blocks of black dots on white – the number and pattern of the dots within each block determining its overall luminosity.|
|o||Threshold This assigns black pixels to colors with a luminosity below the threshold value, and white to the remainder. Enter a value in the range 1 to 254 (default value is 127, i.e. 50%).|
|o||Adaptive The density in each quadrant of the image is computed and the image adjusted by interpolating between these values. The image is then converted to a 1-bit image using the specified threshold value.|
|o||Dither A method of error diffusion that takes into account the discrepancy between the original luminosity of a pixel and the monochrome value that the default threshold value of 50% would assign to it. The difference is propagated to adjacent pixels, resulting in a more randomized scatter of black and white pixels than basic thresholding.|
|12.||Select the smoothing options for 'colored images and the screen' and 'monochrome images' that you would like EscapeE to use when images need to be scaled down in size.|
|o||Gray-scale gives the best effect if the output format supports it, but if converting to 1-bit monochrome it may be preferable to use 'Simple' or 'Two-bit'.|
4-bit gives better results than 8-bit, which is only suitable when images are to be heavily scaled-down.
|o||Simple scaling is probably somewhat quicker but for images which are scaled down considerably or have pale areas, it may result in parts of the image vanishing altogether.|
|o||Two-bit scaling guarantees that if a pixel in the resulting scaled image contains any black then it or its neighbor will be black – and similarly for white.|
In addition, when you have finished setting up the options, you may also choose to create a Shortcut icon that uses all the options you have set by clicking Shortcut... (see Shortcuts - the easy way to construct a command line) or click the Save button to retain these settings after you close the program.
Image format file export
More options for PDF export