Not sure why you'd do such a thing,but yes you'd have to edit it manually.
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From: support-bounces@drupal.org [mailto:support-bounces@drupal.org] On Behalf Of Jean Gazis Sent: Friday, June 29, 2007 11:32 AM To: support Subject: [support] using an alternate front page
If I upload a file with a plain html front page in Drupal, can I then edit it in Drupal, or do I have to edit offline and re-upload? I suspect that' s a dumb question but thought I'd just check.