How to Move a Spectrum from iNMR to Anywhere

The simplest way to create a picture of the spectrum is to copy it into the clipboard. If you prefer “drag & drop”, select the dragger tool. This method works wonderfully when creating RTF documents with TextEdit. The method is implemented in all versions of iNMR and iNMR reader.

There are programs that do not implement the “Paste” command. It looks incredible, but there are programs that can paste a QuickDraw picture but can't paste a Quartz picture. In this case you must choose another method, like creating a graphic file. The same method becomes a necessity when you want to send a spectrum to a colleague working with a different operative system. The size of the picture will be equal to the size of the window. In the case your colleague says: “Give me a picture 500 pixels wide and 400 pixels high” do the following:

Preliminary consideration: if your eventual purpose is to put black ink on paper, make the spectrum black from the start, don't rely on software corrections. Now you must consider if you need the picture for a presentation (that is: a slide) or for printing. In the former case you'll prefer thicker lines, in the latter case you'll prefer higher resolution. You set both parameters into the Application Preferences. Open the Preferences dialog and go to the third panel (“Output”). At the bottom you find something like “Resolution” and “Line Thickness” “when copying and exporting”. I prefer setting both values to 1 for a slide and to set resolution=4 and line thickness=0.25 for printable pictures. Your milage may vary. To generate the final file, use the command File/Export and select one of the listed formats: PDF, PNG, JPEG, TIFF, BMP, PICT.

PDF is an abstract description of the page that makes the least assumptions about the medium. It is interpreted by the receiving application, according to the context. Sometimes it is well interpreted, sometimes it is badly interpreted. When you choose a format different from PDF, iNMR generates a bitmap, that is a very crude, point by point, description of the image. The great thing about bitmaps is that they are not subject to interpretation: they look the same under all applications, all operative systems. They have, however, a fixed, unitary, resolution. This leads too poor results when printing, but iNMR has a mechanism to overcome this limitation.

Let's say, following our example of a 500x400 picture, that you have set resolution = 4 and line thickness = 0.25. Just because a bitmap can only have resolution = 1, iNMR multiplies everything by your resolution value, in this case by 4. The picture size will be 2000x1600. When you open the picture with Preview, or embed it into a MS Word document, you can reduce the size 4 times (in this example) and everything will fall into place. The mechanism allows you to achieve higher resolutions with bitmaps and, because bitmaps are universally recognized and accepted, you can export high qualities pictures just everywhere, eventually.

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