[wastewater]

I scanned a textbook on my company Xerox machine into a multiple page searchable PDF files at 400 DPI. Each file contained about two chapters. I then downloaded the PDF’s and separated, collated and renamed the files using PDFill tools and infanview so in the end I have a bunch of single pdf scans. I then converted the pdf’s to tif files using Infanview and wanted to import the tiffs into scantailor to do the postprocessing work. But now it is asking me to fix the dpi with a pop up window before I import the scans to scantailor. It says I need to fix all pages and offers the custom DPI of 96 X 96. The checkbox “fix dpi even if they look ok is not selected“ Not sure of what to select as the dpi and since 96 X 96 seems very low I went witt 400 dpi. But the scans are running through the scan tailor very fast with more errors than the previous book I scanned straight to Tif format.

Any converting and renaming of the files was done with lossless LZW compression.

the tif files now have a horizontal and vertical resolution of 96 dpi

Did I loose any resolution by converting from a searchable pdf to a tif format?

Any thoughts will be greatly appreciated