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Introduction
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DocToHtml—How to Speed Up the Conversion Process

To access the original document being converted, DocToHtml uses MS Word OLE automation. This approach provides independence from the particular input document format, be it RTF, DOC, DOCX, etc. Alas, there is a catch: sometimes the conversion speed may be extremely low. The following information might be helpful in improving the situation.

  • DocToHtml has a 32-bit core conversion engine. Even if your MS Word edition is 64 bit, DocToHtml’s 32-bit conversion engine still will be used. Moreover, it will be necessary to translate each parameter for each function call between the 32- and 64-bit domains, which may cause a significant slowdown. So if this is the case, think about installing a 32-bit edition of MS Word.
  • Turn on the “No endnote formatting” and “No footnote formatting” options via the Body & Footer tab of the Conversion Options dialog. If these options are on, any special formatting (bold, underline, italic letters, etc.) will be omitted from the text in footnotes and endnotes, but the conversion speed will be more reasonable.
  • At the bottom of the Advanced tab, there is an option named “Do not preserve clipboard content.” If it is turned off, DocToHtml will always save and then restore clipboard content before and after each operation involving the clipboard. (The program uses the clipboard when processing images and some special characters.) Turning this option on will speed up the conversion process, but your data in the clipboard may be occasionally destroyed.
  • You may want to turn off the “Additional check for special chars” option at the bottom of the HTML Code tab to reduce the number of clipboard operations, which might speed up the conversion. However, in that case, less strict parameters will be used when handling special character codes.
  • Make sure that your PC has enough free physical memory. In most cases, about 100 MB is enough.
  • Make sure that you are not running other CPU-intensive tasks during the conversion. Currently, DocToHtml cannot take advantage of multi-core CPUs and does all processing in one thread. So at least one CPU core should not be overloaded by other processes.
  • In general, the less formatting options you use, the faster is the conversion. If you turn such an option on, DocToHtml will have to query the respective formatting attribute for every paragraph and character that are to be processed, which takes some time.