The best online one-stop shop for your document converting needs is Zamzar. And the great thing is that it's free. I can vouch for its power. Recently, I had to convert a locked PDF document -- it couldn't be printed, so I wanted to convert it to Word format and then print it. Zamzar didn't have any problems converting it! All you need to do is upload the file, and Zamzar will e-mail you the converted file or its download link. The converted file resides in Zamzar's server for 24 hours.

Another great development is that the people behind Zamzar have added YouTube conversion. I recently posted about Vixy, another online tool for downloading YouTube videos, and now Zamzar is offering the same free feature, and with an additional tool to boot. You can add -- via dragging -- in the Bookmarks Toolbar of your browser a 'Convert with Zamzar' button. So if you're watching a particular YouTube video, all you have to do is click the 'Convert with Zamzar ' button, and you're taken to the Zamzar web site where you can choose what type of video format you want the video to be converted. Great, huh?

Here's the complete list of document formats which Zamzar can convert:

Document formats
From format	To format
csv - Comma Separated Values	doc - Microsoft Word Document html - Hypertext Markup Language mdb - Microsoft Access Database ods - OpenDocument spreadsheet pdf - Portable Document Format rtf - Rich text format xls - Microsoft Excel Spreadsheet xml - Extensible Markup Language
doc - Microsoft Word Document	html - Hypertext Markup Language odt - OpenDocument Text Document pcx - Paintbrush Bitmap Image pdf - Portable Document Format png - Portable Network Graphic ps - Postscript document txt - Text document
docx - Microsoft Word 2007 Document	doc - Microsoft Word Document odt - OpenDocument Text Document pcx - Paintbrush Bitmap Image pdf - Portable Document Format png - Portable Network Graphic ps - Postscript document txt - Text document
odp - OpenDocument presentation	html - Hypertext Markup Language pcx - Paintbrush Bitmap Image pdf - Portable Document Format png - Portable Network Graphic ppt - Microsoft Powerpoint Presentation ps - Postscript document swf - Macromedia Flash Format File
ods - OpenDocument spreadsheet	csv - Comma Separated Values doc - Portable Network Graphic html - Hypertext Markup Language mdb - Microsoft Access Database pdf - Portable Document Format rtf - Rich Text format xls - Microsoft Excel Spreadsheet xml - Extensible Markup Language
odt - OpenDocument Text Document	doc - Microsoft Word Document html - Hypertext Markup Language pdf - Portable Document Format png - Portable Network Graphic ps - Postscript document txt - Text document
pdf - Portable Document Format	doc - Microsoft Word Document html - Hypertext Markup Language odt - OpenDocument Text Document pcx - Paintbrush Bitmap Image png - Portable Network Graphic ps - Postscript document rtf - Rich Text Format txt - Text document
ppt - Microsoft PowerPoint Presentation	html - Hypertext Markup Language odp - OpenDocument presentation pcx - Paintbrush Bitmap Image pdf - Portable Document Format png - Portable Network Graphic ps - Postscript document swf - Macromedia Flash Format File
ps - Postscript document	bmp - Windows bitmap gif - Compuserve graphics interchange jpg - JPEG compliant image thumbnail - Thumbnail image tiff - Tagged image file format
rtf - Rich Text Format	doc - Microsoft Word Document pcx - Paintbrush Bitmap Image png - Portable Network Graphic ps - Postscript document txt - Text document
wpd - Wordperfect Document	doc - Microsoft Word Document odt - OpenDocument Text Document pcx - Paintbrush Bitmap Image pdf - Portable Document Format png - Portable Network Graphic ps - Postscript document txt - Text document
wps - Microsoft Works Document	doc - Microsoft Word Document odt - OpenDocument Text Document pcx - Paintbrush Bitmap Image pdf - Portable Document Format png - Portable Network Graphic ps - Postscript document txt - Text document
xls - Microsoft Excel Spreadsheet	csv - Comma Separated Values html - Hypertext Markup Language mdb - Microsoft Access Database ods - OpenDocument spreadsheet pcx - Graphics format pdf - Portable Document Format ps - Postscript document rtf - Rich text format xml - Extensible Markup Language

Image formats
From format	To format
bmp - Windows bitmap	gif - Compuserve graphics interchange ico - Windows Icon jpg - JPEG compliant image pcx - PC Paintbrush Bitmap Graphic ps - Postscript document png - Portable Network Graphic tga - Truevision Targa Graphic thumbnail - Thumbnail image tiff - Tagged image file format wbmp - Wireless Bitmap File Format
gif - Compuserve graphics interchange	bmp - Windows bitmap jpg - JPEG compliant image pcx - PC Paintbrush Bitmap Graphic ps - Postscript document png - Portable Network Graphic tga - Truevision Targa Graphic thumbnail - Thumbnail image tiff - Tagged image file format wbmp - Wireless Bitmap File Format
jpg - JPEG compliant image	bmp - Windows bitmap gif - Compuserve graphics interchange ico - Windows Icon pcx - PC Paintbrush Bitmap Graphic ps - Postscript document png - Portable Network Graphic tga - Truevision Targa Graphic thumbnail - Thumbnail image tiff - Tagged image file format wbmp - Wireless Bitmap File Format
pcx - PC Paintbrush Bitmap Graphic	bmp - Windows bitmap gif - Compuserve graphics interchange ico - Windows Icon jpg - JPEG compliant image ps - Postscript document png - Portable Network Graphic tga - Truevision Targa Graphic thumbnail - Thumbnail image tiff - Tagged image file format wbmp - Wireless Bitmap File Format
png - Portable Network Graphic	bmp - Windows bitmap gif - Compuserve graphics interchange ico - Windows Icon jpg - JPEG compliant image ps - Postscript document pcx - PC Paintbrush Bitmap Graphic tga - Truevision Targa Graphic thumbnail - Thumbnail image tiff - Tagged image file format wbmp - Wireless Bitmap File Format
tga - Truevision Targa Graphic	bmp - Windows bitmap gif - Compuserve graphics interchange ico - Windows Icon jpg - JPEG compliant image ps - Postscript document pcx - PC Paintbrush Bitmap Graphic png - Portable Network Graphic thumbnail - Thumbnail image tiff - Tagged image file format wbmp - Wireless Bitmap File Format
tiff - Tagged image file format	bmp - Windows bitmap gif - Compuserve graphics interchange ico - Windows Icon jpg - JPEG compliant image pcx - PC Paintbrush Bitmap Graphic ps - Postscript document png - Portable Network Graphic tga - Truevision Targa Graphic thumbnail - Thumbnail image wbmp - Wireless Bitmap File Format
wbmp - Wireless Bitmap File Format	bmp - Windows bitmap gif - Compuserve graphics interchange ico - Windows Icon jpg - JPEG compliant image ps - Postscript document pcx - PC Paintbrush Bitmap Graphic png - Portable Network Graphic tga - Truevision Targa Graphic thumbnail - Thumbnail image tiff - Tagged image file format

Music formats
From format	To format
aac - Advanced Audio Coding File	ac3 - AC3 Audio File flac - Free Lossless Audio Codec m4a - MPEG-4 Video File mp3 - Compressed audio file mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file wma - Windows media file
ac3 - AC3 Audio File	aac - Advanced Audio Coding File mp3 - Compressed audio file m4a - Compressed video file ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
flac - Free Lossless Audio Codec	aac - Advanced Audio Coding File ac3 - AC3 Audio File mp3 - Compressed audio file m4a - Compressed video file ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
m4a - Compressed video file	aac - Advanced Audio Coding File ac3 - AC3 Audio File flac - Free Lossless Audio Codec mp3 - Compressed audio file mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file wma - Windows media file
mp3 - Compressed audio file	aac - Advanced Audio Coding File ac3 - AC3 Audio File flac - Free Lossless Audio Codec m4a - MPEG-4 Video File mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file wma - Windows media file
ra - RealMedia Streaming Media	aac - Advanced Audio Coding File ac3 - AC3 Audio File flac - Free Lossless Audio Codec m4a - MPEG-4 Video File mp3 - Compressed audio file mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file wma - Windows media file
ram - RealMedia Metafile	aac - Advanced Audio Coding File ac3 - AC3 Audio File flac - Free Lossless Audio Codec m4a - MPEG-4 Video File mp3 - Compressed audio file mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file wma - Windows media file
wav - Windows audio file	aac - Advanced Audio Coding File ac3 - AC3 Audio File flac - Free Lossless Audio Codec m4a - MPEG-4 Video File mp3 - Compressed audio file mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file wma - Windows media file
wma - Windows media file	aac - Advanced Audio Coding File m4a - Compressed video file mp3 - Compressed audio file mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file

Video formats
From format	To format
3gp - 3GPP Multimedia File	aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video ipod - MPEG-4 Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
avi - Windows video file	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File flac - Free Lossless Audio Codec flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
flv - Flash video	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
gvi - Google video file	aac - Advanced Audio Coding File avi - Windows video file flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
m4v - MPEG-4 Video File	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
mov - Apple QuickTime Movie	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
mp4 - MPEG-4 Video File	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
mpg - Moving Picture Experts Group File	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
rm - RealMedia Streaming Media	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
rmvb - RealVideo Variable Bit Rate File	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
vob - DVD Video Movie File	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video gif - Graphic Interchange Format iphone - MPEG-4 (H264) Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file
wmv - Windows Media Video	3gp - 3GPP Multimedia File aac - Advanced Audio Coding File ac3 - AC3 Audio File avi - Windows video file flac - Free Lossless Audio Codec flv - Flash Video iphone - MPEG-4 (H264) Video File ipod - MPEG-4 Video File mov - Apple QuickTime Movie mp3 - Compressed audio file mp4 - MPEG-4 Video File mpg - Moving Picture Experts Group File ogg - Ogg Vorbis Compressed Audio File wav - Windows audio file