Convert TIFFs to PDF
Drop a single- or multi-page TIFF in and get an image-only PDF back. Optionally apply Foxit's MRC (Mixed Raster Content) compression to dramatically shrink the file while keeping text crisp via JBIG2.
How it works
The Foxit PDF SDK loads the TIFF via common::Image, walks the frames with GetFrameBitmap(), and for each frame inserts a fresh PDF page sized to width_px / dpi * 72 points before stamping the bitmap onto it with PDFPage::AddImage(). The result is a "scanned-style" image-only PDF — pixel-faithful to the source, but in a portable format.
When Optimize (MRC) is on, the SDK re-saves the document through addon::optimization::Optimizer::OptimizeScannedPDF(). That runs Foxit's MRC analysis (foreground / background / mask layer separation) and re-encodes each layer with the best codec for its content — JBIG2 for monochrome text, JPEG or JPEG-2000 for photo regions. Typical document scans shrink 10×–100×.