The TIFF to PDF API route only converts through createPdfFromImages, which embeds the converted image on a PDF page; it does not run OCR or add a text layer.
Making a PDF searchable requires OCR technology to recognize and embed text in the document. Free OCR for PDF: Recognize text for a searchable PDF | Acrobat - Adobe
TIFF To PDFTiff To Searchable Pdf Ocr
Select the source TIFF file to begin the conversion step.
Download it.
Open a separate OCR application.
Feed the downloaded PDF into the OCR application.
Verifying Searchable Text in TIFF PDFs
Open the final PDF in a text editor.
Select a word to check for a text layer.
Using the start-over link empties the upload queue, making room to prepare another TIFF for the OCR handoff.
Continue with TIFF to PDF Quality Lossless or Combine Multiple TIFF Into One PDF.
Frequently Asked Questions about TIFF to Searchable PDF OCR Guide
How do I start the conversion process?
Choose the TIFF file from your device to start the conversion.
Where do I find the finished document?
Locate the download link on the results screen to retrieve the PDF.
How do I add a text layer to the PDF?
Use a separate OCR application to process the file.
How do I prepare another set of files?
Hit the reset link inside the upload panel to queue a fresh TIFF for OCR.