File Type Options - PDF

The File Type Options dialog is entered when you press Options in the Image Conversion dialog or the Send Image dialog. The dialog allows you to specify convert options for the currently selected image file format.

The available options depend on the file format. Here are shown the options for the PDF file format.

The PDF file format can contain different object types, including graphics, text, and images. An image saved as PDF in EasyCopy contains a single image object. Note, that you can read any PDF file, but PDF files you read are converted to image format.

Color Mode

Best Fit

Let EasyCopy determine the best color mode. This is the default. EasyCopy will choose the optimal color mode for the given image taking other current settings into account.

RGB

RGB means a 24-bit RGB image ("true color").
RGB is only available together with None or Deflate compression.

YUV

The YUV color space contains one luminance component (Y) and two chrominance components (U, V). This color space is used rather than RGB because it yields a better compression when JPEG is used.
YUV is only available together with JPEG Baseline compression.

Gray Scale

A gray scale image (256 shades of gray).

Bilevel

Bilevel means a bilevel, black-and-white image.

Compression

None

Select None to get an uncompressed PDF file.

JPEG Baseline

This is JPEG compression embedded in the PDF format. JPEG compression operates on continuous-tone images with one or three components (gray scale or color). Baseline is a sequential JPEG compression using a subset of the JPEG standard.

Deflate

Deflate is an efficient compression method for almost all image types.

CCITT Group 4

This is a CCITT facsimile compression.

CCITT compression implies a color mode of bilevel

Error Diffusion
Enable this option if you want color differences distributed to the neighboring pixels. Normally, this results in a substantially better color rendering, although at the expense of image details; the sharpness becomes slightly degraded. Refer also to the topic Image Shading.

Quality
This is the image quality if you have selected JPEG Baseline compression. You can use the slider to choose a number between 1 and 20 to specify the tradeoff between compression ratio and quality loss.

The leftmost slider position gives the highest compression at the expense of image quality, and the rightmost position gives the highest image quality and a lower compression.

Alternatively, you can use the drop-down menu to select image quality.