Yes, that's correct.
The use of Standard is that it allows you to create form fields that your
users can fill in and print out.
In order to save the form the file needs to have extended Reader rights,
which can be enabled with Pro.
To create the fields you can enable the Forms toolbar (right-click on the
toolbar and click on Forms). Then you will see the different tools that you
can use for your form: text boxes, radio buttons, combo boxes, buttons, etc.
It seems, from Bernd's comment, that version 7 (Standard) did not have this
functionality, but version 9 (Standard) does.
However, as I wrote, if you want the users to be able to save the file after
they filled it in, you will need version 9 (Pro).
And Acrobat has a wizard that can pick up fields that were created in Word
and convert them to Acrobat form fields.
You should think of Standard as the economy version, kind of like the cars that used to come without radios or air conditioning (almost unheard of today). Depending on your use, you should also be careful about the 500 use limit on forms when Reader Rights is activated. You can check the license by downloading it from Adobe (or looking in the Acrobat folder) and go to Sec. 15. Without activating the Reader Rights, the limit does not apply. Folks can still print the PDF with Reader, they just can not save it with the form fields filled in. The latter is not required if the form is being submitted as you can import the data file submitted to the form and have the same result.
OpenOffice.org can create form with form fields from either MS Office or the OpenOffice text file and export the form with fields to a PDF. But you will not be able to add interactivity with Acrobat Standard below 9.
OpenOffice as an Acrobat Form Design Tool by Carl Young
OpenSource.org PDF Forms by Ted Padova
As Bernd stated, no Form creation with Acrobat 7 Standard.
n.b., Adobe has announced that all support for Adobe Reader/Acrobat version 7 ends at this year.
Just my 2 cents.
If it were me, I'd buy Acrobat Professional.
Currently, this would be Acrobat 9 Professional.
Yes, with each new release the Standard version has gained something.
However, with each new release, Professional gains more.
Make the time to study and play with Acrobat Professional.
From this you will realize a handsome ROI.
With Professional you do all there is to do for PDF forms.
LiveCycle Designer (for dynamic forms) is an "added value" that comes with Professional.
This gives you another means of developing forms in the future.
Once you get your feet wet with working up PDFs you'll want to take the plunge.
Standard is the nice, small, screened in "Florida pool". Delightful on those hot summer days.
Professional is the large, resort style Infinity Pool in the back yard (with a swim up bar & bar staff <g>).
"FILL & SAVE"
Take a PDF form. "Enable" or "Extend" this PDF.
("Enable" via Acrobat 7 Pro, 7's "3D", 8 Pro, or 8's "3D" or "Extend" via Acrobat 9 Pro or Pro Extended)
This tells Adobe Reader it is allowed to save the PDF form AND information the user entered.
Otherwise, Adobe Reader lets the user enter information and print to paper but no "save" of the PDF with user entered information.
Should you decide to purchase Acrobat version 9 , do be sure to step through each of the Acrobat 9.x updates.