Bulk Rename Utility

I have a folder containing several image files, all starting with 'R-.' I would like to add leading zeros to the filenames to ensure they have a six-digit file name format.

In the following example, the first two filenames are correct, but for the remaining ones, I need to add the necessary zeros to achieve a six-digit filename. For instance:

R-001057.jpg = good
R-000058.jpg = good
R-753.jpg = R-000753.jpg
R-1054.jpg = R-001054.jpg
R-1055.jpg = R-001055.jpg
R-656.jpg = R-000656.jpg

Your assistance in this matter is appreciated

To only rename jpg's, then Filters(12) could use something like *.jpg inside for the "Mask".
For 6-digits, Regex(1) needs a checkmark inside for "v2" with a "Match" and "Replace" like...
^(R-)(?=\d+$)(?X)(\G(?!^)|^R-)\K0(?=\d{6,}$)/g
${1}00000(?X)

R-1 ------------> R-000001
R-199 ---------> R-000199
R-00000009 --> R-000009
R-10000009 --> (not renamed)

Luuk wrote:To only rename jpg's, then Filters(12) could use something like *.jpg inside for the "Mask".
For 6-digits, Regex(1) needs a checkmark inside for "v2" with a "Match" and "Replace" like...
^(R-)(?=\d+$)(?X)(\G(?!^)|^R-)\K0(?=\d{6,}$)/g
${1}00000(?X)

R-1 ------------> R-000001
R-199 ---------> R-000199
R-00000009 --> R-000009
R-10000009 --> (not renamed)

Thank you so much! The process worked perfectly, just as expected

I need another help, how can I remove any characters between the last number in the file name and the extension as highlighted in the below image?

Would need to edit the "Match" and "Replace" to something more like...
^(R-)(\d+).*(?X)(\G(?!^)|^R-)\K0(?=\d{6,}$)/g
${1}00000$2(?X)

R-1 ------------> R-000001
R-2Text -------> R-000002
R-199 ---------> R-000199
R-00000009 --> R-000009
R-10000009 --> (not renamed)