How to avoid quality loss?

Question

JPEG

Hello. I have 8 JPG images. The quality suits me. Asked to issue one PDF file. I found a converter site)), uploaded my 8 images to it. The output was one PDF file, which was required. But the image became noticeably worse, somehow blurry or something. Please tell me what can be done so that there is no loss of image quality. Thank you.

Answer 1

Via Print to PDF:
https://en.wikihow.com/convert-Jpeg-to-Pdf

Answer 2

For example, img2pdf