The AEC Associates PDF to CAD Conversion has become an integral part of the construction industry once erstwhile manual drafting and design was replaced by computer aided design and drafting process. Scores of online conversion companies keep mushrooming across the world every day promising quality services to their customers; often giving an impression that PDF to CAD conversion is a simple and easy process. However, this is not true, several issues make the CAD conversion a complex and difficult process. Some of these issues are discussed below.
1. Converting CAD entities
PDF vector graphics are limited, presenting a great challenge for the conversion process. A vector graphic file contains no CAD arc or circle entities; these arcs and circles have to be made out of either several short lines or Bezier curves. This procedure is quite complex and needs top quality software and experienced hands. If PDF to CAD conversion is not performed efficiently, the converted drawings are not of top quality.
2. Conversion of text
PDF files allow for very fine positional accuracy of text, holding words and sentences as sets of individual characters. Each character contains associated positional and style information. Reassembling these characters into original strings needs very high accuracy and skill. A less than perfect conversion is likely to make the reconverted text illegible or at least unclear.
3. Raster images
An ordinary conversion software would create multiple raster files for multiple raster images contained in the PDF file, making PDF to CAD conversion a tricky job. This would make the task of storing and restoring the drawings a big challenge. One should use a software that maps all the raster images into a single raster image file so that the DWG drawings are easily accessible and editable.