TIFF vs PDF: Quality, File Size, and Best Use Cases
Published on March 29, 2026
TIFF is an image format built for lossless quality. PDF is a document format built for sharing and viewing. If you are scanning documents, archiving files, or choosing between these two for a project, the right pick depends on whether you need image fidelity or document usability.
Image Quality
TIFF uses lossless compression (typically LZW or ZIP), so every pixel is preserved exactly. This makes it the standard format for professional printing, medical imaging, and archival scanning. PDF can contain images in any format, including lossless, but most PDFs use some level of JPEG compression internally. A PDF scan is typically good enough for reading, but a TIFF scan preserves more detail for zooming, editing, or reprinting.
File Size
TIFF files are significantly larger. An uncompressed TIFF of a scanned letter-size page at 300 DPI is around 25 MB. With LZW compression, that drops to 3-8 MB. A PDF of the same scan is typically 100-500 KB. For bulk document storage, PDF wins on storage costs. For archival where quality cannot be compromised, TIFF is worth the disk space.
Searchability
PDF supports embedded text, which means you can search, copy, and select text within a PDF document. Most PDF scanners apply OCR (optical character recognition) automatically. TIFF is purely an image format with no native text layer. Making a TIFF searchable requires running OCR separately and storing the text in a sidecar file, which is clumsy compared to PDF.
Multi-Page Support
Both formats support multiple pages in a single file. Multi-page TIFF files combine individual page images into one file. PDF handles multi-page documents natively and is designed for it. PDF also supports bookmarks, hyperlinks, form fields, and annotations, making it far more versatile for documents. For a format comparison focused on images, see TIFF vs PNG.
When to Use Each
Use TIFF for high-resolution scans that need lossless quality: print-ready images, medical records, engineering drawings, or long-term archival where future quality matters. Use PDF for everything else: sharing documents, email attachments, contracts, reports, and any document that people need to read, search, or annotate. Most offices standardized on PDF years ago because it balances quality, file size, and usability.
Need to work with PDFs? Try our Image to PDF converter or Merge PDF tool. For more comparisons, see TIFF vs JPG and PDF vs DOCX.