ChemDoodle versions

v9.1 [May 31, 2019]
What is new in ChemDoodle 9
A new user manual discusses all the new features in detail over several pages, too many to list here. (click to load manual, section 1.2)
Drawing and Graphics – Tons of new systems for making your graphics quicker. Auto-placement of attributes (charges/radicals/stereocenters/etc.). An improved text tool that can create both atom text and formatted captions. Draw chiral carbon nanotubes in addition to zigzag and armchair. New dynamic brackets and structure highlights. Better drawing tools for advanced figures.
Chemistry – State-of-the-art implementation of the most recent CIP rules. A clearer and more powerful warning system. Advanced implicit hydrogen handling including the analysis of advanced aromatic resonance systems. Full support for the latest elements as defined by IUPAC and much more!
Interface – A brand new customizable cursor system, improved IUPAC name-to-structure interface. Improved color palettes, now with Rasmol, CPK and Custom color sets. HTTPS support for PubChem is now implemented for access in MolGrabber. Improved color choosers including alpha support and high resolution improvements across the entire application.
Chemical Files – The Nature style sheet has been added. SMILES interpretation has seen significant work, with a focus on very advanced cheminformatics techniques. Added support for the RCSB MacroMolecular Transmission Format (MMTF). More support for ChemDraw, MDL CT, MRV and ISIS/Sketch files.
Images – TIFF images can now be exported with custom DPI settings. GIF image output can now have semi-transparent pixels merged with white. Added viewBox attribute for SVG. When saving files, you can now use alternate extensions and other image file chooser improvements. Control which image file types are shown in the save image choosers.
Vector Art – New glassware graphics have been added as well as dozens of new BioArt.
Customizability – The keyboard and tools shortcuts are now fully customizable by the user. The user settings folder location can now be controlled. Custom attribute names and values are now persisted through restarts.
Windows – Full support for high-DPI screens, without the manual scaling required in the past. The OLE plugin has been rebuilt for the most current compliance with Windows libraries.
macOS – Improved and full Retina support. Native file choosers.

v7.0 [Sep 4, 2014]
- A new and improved interface based on the feedback from the last 6 years. The new interface is focused on the content and allows you to maximize your drawing areas. Widgets are now floating and can be individually enabled and disabled.
- ChemDoodle 3D. A new application for creating 3D graphics and more for the sciences. You have full control over the 3D graphics and animations, including text. Distance, angle and torsion measurements are provided. Also a corresponding builder for 3D ChemDoodle Web Components. There is so much more.
- Full multipage document support. Create lists of pages or grids. Draw between all pages and print them out.
- BioArt. Large, full color, libraries of new art for use in biological figures, including animals, organs and organelles.
- A set of 48 safety symbols included in the glassware set.
- Significant performance improvements, in many cases 20x faster than v6. ChemDoodle will now load faster, work faster and respond faster.
- New drawing features: collapse fragments to labels, incrementing list attributes (to quickly number or designate parts of structures), new TLC options, rotate atom labels if only a single atom is selected (as opposed to the global option), and more visual specifications among others.
- Twitter integration.
- Integration with the LabArchives ELN.
- Support for both Java 6 and 7 on Mac OS X.
- Dozens more improvements and additions.

v5.1 [Apr 27, 2013]
Additions:
- Updated ChemDoodle Web Components support to version 5.
- It is now easy to copy/paste ChemDoodle JSON (for easier interaction with the web sketcher on a webpage) directly from the Edit menu.
- Added a Paste and Match Style menu item to the Edit menu to paste content and match the current style sheet.
- Zero order bonds are now rendered as a line of dots.
- Bonds can now easily be drawn between two atoms by just dragging the mouse close to the second atom when drawing.
- Half-arrows can now be drawn on bezier curves.
- Added 31 new glassware templates.
- You can now change the arrow type (full/half) in the shapes settings dialog.
- Added rearrangement arrow option to the shapes settings dialog.
- In the General panel in Preferences, you can now control the highlight, selected, preview and error colors.
- When using the Carbon Chain tool, the carbon chain will now invert in half portions depending on where the mouse is located. More angles are now allowed.
- Added a Delocalize menu item to the Structure menu to delocalize a Kekule structure.
- Added a menu accelerator for Copy as SMILES and Paste as SMILES.
- Improved the bitmap rendering of straight arrows.
- Minor graphical improvements including line highlighting and anchor rendering.
Fixes:
- Improved PubChem results.
- Implicit hydrogens are now preserved in MolGrabber if they help to define stereocenters.
- Fixed issue where fusing rings to bonds did not always choose the best orientation in the optimize zone.
- Mass calculations now take into account atom charges.
- Improved NMR simulation chemical shift accuracy for acetylene and aldehyde protons.
- Fixed bug where pasting chemically interpretted atoms would ignore formatting.
- Fixed issue where switching to new document when a text field is open reopens the old text field.
- Fixed bug where formatting a carbon label caused file corruption.
- Fixed bug where closing a blank formatted atom field would cause an error.
- Editing arrows using the shape settings window can now be undone.
- Reduced the width of the Unicode button in the Symbols widget to facilitate resizing.
- Resolved issues where using the shift key on Windows would cause some issues when editing content with a selection tool.
- Resolved issues where using the alt key on Windows would cause some issues when selecting content with a selection tool.
- Removed the invisible rotation anchor that would be present for single selected atoms.
- Decorated reaction arrows now correctly shift text to avoid overlaps.
- Fixed issue where using the atom start select tool in the Line Notation Pad widget would cause it to crash on rare occasions.
- Selection tools no longer allow the hovering of attributes when selecting single objects.
- Fixed issue when url encoding was required to properly query ChemExper.
- JCAMP spectra units are now detected regardless of case.
- Fixed Kekulizer issue where errors could occur.
- Improved detection of MOLFile variations.
- Minor textual corrections.