Manual Setting: The default scenario places all images in the background and place vector graphics in the background. In certain circumstances, the user may wish to try and work with the vector graphics - to do so, the following optionscan be used:
Place all Images in Background - This setting will place all images identified within a PDF document onto the background,in the converted Word document. Otherwise images (such as JPG or BMP files) will be added as MS Word pictures, so that you can format each image separately or change/move their position within the document.
In certain cases dealing with "masked images", the conversion into Word may not be properly rendered based on our default setting. A "masked image”� refers to the portion of a viewable image on a PDF document that is cropped or "masked”� out ““ and placed on a different background. Because PDF documents may be multi-layered, the several backgrounds or layers contained within a PDF document may cause problems in conversion output.
In certain other cases, attributable to an inappropriate Z-order (i.e. the order in which graphics objects overlap each other) in the PDF source, images may also be incorrectly displayed ““ such as problems with image borders or disappearing images. In both of these cases, selecting this option (i.e. placing all images from the page to the background image) may avoid problems in the image display for the converted document.
Vector Graphics as Background Image - This option converts all PDF vector graphics objects within a page into a background image. What are vector graphics? Generally, there are two kinds of graphical objects in PDF documents”“ pixel-based images and vector graphic images (consisting of lines and shapes).
Pixel-based images that are viewed in Word may result in varying resolution ““ if the image is resized or redrawn, MS Word will attempt to add/remove pixels based on an algorithm. In most cases, the result is a loss in image quality ““ for instance, thin lines might disappear under low resolution.
Vector graphics, on the other hand, in PDF may be drawn at any resolution ““ which may result in better conversion results upon conversion into Word. However, in some cases, the number of vector objects comprising an image may be high, which may compromise the conversion for a particular Word document.
In cases where the rendering of vector graphics poses problems in the display of the conversion output, this option allows the user to display all vector graphics as a background image. By doing so, it ensures the integrity of the vector graphic image ““ although the drawback is that the vector image is not easily moved within the Word document.
This article refers to Able2Doc, Able2Doc Professional, Able2Extract and Able2Extract Professional.