Connecting the phone to a PC/Mac and using reputable desktop recovery software.

You deleted a critical invoice_q4.pdf from your company phone. Without root, you might be out of luck. But if the PDF was stored on an adopted SD card (formatted as internal), DiskDigger Pro can scan the ext4 partition without mounting it, recovering the entire PDF.

Unlike many free recovery tools, the Pro version provides a seamless experience without intrusive advertisements. Google Play Technical and Safety Considerations

While DiskDigger Pro is a low-cost, ad-free option for quick jobs, reviewers often compare it to other professional tools: