# pamstretch > Scale up a PAM image by interpolating between pixels. > See also: `pamstretch-gen`, `pamenlarge`, `pamscale`. > More information: . - Scale up a PAM image by an integer factor: `pamstretch {{N}} {{path/to/image.pam}} > {{path/to/output.pam}}` - Scale up a PAM image by the specified factors in the horizontal and vertical directions: `pamstretch -xscale {{XN}} -yscale {{YN}} {{path/to/image.pam}} > {{path/to/output.pam}}`