FreePCB-2

an open source PCB editor for Microsoft Windows, released under the GNU General Public License.

References

Make the selection mask as shown in the figure by clicking on the PARTS string while holding down the CTRL key.

Auto-positioning of PCB symbols

Then select a few details with the selection frame (about 10, I don’t advise highlighting a lot, since the process can take a lot of time)

Auto-positioning of PCB RefDes

Now press the F7 button (Ref_Auto_Pos). If the angle of the Ref string is not a multiple of 90 degrees, or if the program could not find the position, then after the procedure the part will remain highlighted, and the softkey menu will take a second page. Now you can press F5 (Ref Size) to reduce the Ref-size, and try again.

Automatically positioning