Batch convert TIFFs to PDFs

Have the TIFF files in one folder.

Open Acrobat X Pro. Select: Edit > Preferences > Convert To PDF > TIFF — now, click on the "Edit Settings" button. Configure as desired.

Next, select Tools > Action Wizard > Create New Action.

In the "Create New Action" dialog —

--| For "Start with" select "A Folder on My Computer".

--| Browse to and select the folder containing the TIFF files.

--| Skip "Steps".

--| For "Save To" select "A Folder on My Computer".

--| Browse to and select the desired folder.

--| Save the Action.

Run the Action. PDFs will be in the "Save To" folder you designated.

If you desire a particular "Initial View" for the PDFs or have common metadata (Title | Author | Subject | Keywords) you can accomplish this.

Edit the Action. Use "Steps".

For Initial View: Document Processing > Set Open Options then open the Options menu to configure.

For common metadata: Content > Add Document Description the open the Options menu to configure.

Are the TIFF files of textual content that wants OCR?

Add OCR to "Steps". Recognize Text > Open Options menu > select desired output style.

Just the tip of the iceberg. There's much more that may be accomplished.

Be well...