(I know it can be difficult to trust someone on the internet, but I wouldn't post this if I weren't 100% confident.)
AUTOCAD PRINTING WITH TRANSPARENCY SLOWS PRINTING PDF
These more recent PDF formats support transparency and will not flatten the file, thus won't result in the stitching due to flattening.įor most print work I recommend saving to PDF/X-1a, Acrobat 4 (PDF 1.3) format and simply ignore the white hairlines. Essentially anything as Acrobat 6 (PDF1.5) or higher. If your'e generating PDFs and this is an issue.įourth, you can save/export the PDF to a PDF format which is not a flat file format. The above items may remove the hairline appearance entirely for proofing press PDFs. In addition, ticking "enhance small lines" and "smooth images" may also help (same screen as below).
![autocad printing with transparency slows printing autocad printing with transparency slows printing](http://cadsetterout-wpengine.netdna-ssl.com/wp-content/uploads/2011/12/AutoCAD-Drawing-utilities.png)
Third, set the preferences in Reader or Acrobat to Always use overprint preview. Most other PDF viewers have display issues once you start getting into more complex PDFs than what Office spits out. Second, use an Adobe product to view PDFs. They are designed to show the PDF as best as possible so it can be seen - generally there's no attention to more advanced PDFs containing print production items such as spot colors, overprints, etc. The browser plug ins used to view PDFs are not designed to render everything absolutely accurately. There are a few things which may help the on-screen display.įirst, never view print proofs in a browser window. These don't show when the art is printed. These hairlines will absolutely disappear when the PDF is printed. These are flat file formats and require art not contain transparency for proper rendering.
![autocad printing with transparency slows printing autocad printing with transparency slows printing](https://images-na.ssl-images-amazon.com/images/I/41Eo4Q22-DL._AC_SY400_.jpg)
If you zoom in or out you will most likely see the lines disappear or appear in other areas, but will never increase in size.Īs a print proof it's most likely that the PDF is in PDF/X-1a format or Acrobat 4-5 format. These hairlines are due to flattening, anti-aliasing, and overprinting.Įssentially they show the seams between where transparency has been flattened to preserve appearance.