Synchronize your albums by checking the Sync to Web button at the top right of the screen. If you add or delete photos, add captions, rename your Album or do any editing, these will all be synchronized. However, it is a one way street! Changes made in Picasa software will sync with the web. However, changes made on the web will not sync to the Picasa software.
You can import photos to Picasa 3 from various places, such cameras, scanners, CD's, memory cards, etc. When you import into Picasa, you will be asked to name the folder for them. This new folder will be created on your hard drive.
How to Share Your Albums or FoldersThere are three ways to share your photos from Picasa 3.
Upload and Email - Click the Share button at the top of the screen. You will be prompted to upload your Album or Folder to Picasa Web Albums. You will also be prompted for an email address for the person(s) you wish to share the photos with. So, Picasa uploads your photos and then emails the recipient. The email will have a link to where your photo Album is on the Picasa Web Albums website. You can also go to the site, copy the link, and paste it in any email program that you might use.
I like this email feature, particularly when folder file sizes are large. By just giving a link to the Picasa website page, you eliminate the need to send multiple, large jpeg files and the problems that can occur.
Upload Only - Click the Upload button at the bottom of the screen. Here is where you just upload your Album or Folder to the website (Picasa Web Albums). You can then share from the website.
Email Only - By clicking the Email button next to the Upload button on the bottom, you can email the photos from your computer as jpeg. files to the email recipient. You can choose for the email to be sent from your Google email address or from Thunderbird, if you have a default email address set up there. Either way, they are sent as jpeg. photos.
Ordering Prints and Online PrintingThere are various ways to print your photos. You can just print from the Picasa 3 program. You can also select photos to be sent to a digital photo printing service. To order prints this way, select your pictures that you want to have printed. Choose Shop at the bottom of the screen. You will then see a choice of about 14 different photo printing companies.
Choose which one you would like to use. However, you should already have an account set at the company. Your pictures will appear on the screen (already uploaded), and you simply have to make your choices, such as size, quantities, etc. You can also print from Picasa Web Albums online. However, there are fewer printing company options.
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Other Picasa Pages:
Picasa Web Album
How does the online storage and sharing work?
Picasa Photo Editing
Can my edit my photos in Picasa 3? (Yes!)
How do Picasa 3 software and Picasa Web Album work together?