TIFF vs PDF: What's the Difference and When to Use Each

What Is TIFF?

TIFF (Tagged Image File Format) was developed in the 1980s as a standard format for scanned images and professional photography. It was designed to be a flexible, lossless container for raster image data — meaning every pixel is stored exactly as captured, with no compression artifacts.

TIFF files can be very large. A single 24-megapixel photo in TIFF format can easily exceed 70MB. This makes TIFF impractical for everyday sharing, but ideal for situations where absolute image fidelity is required.

TIFF supports:

Lossless compression (LZW, ZIP) or no compression at all

Multiple pages within a single file (multi-page TIFF)

Very high bit depths (8-bit, 16-bit, 32-bit per channel)

CMYK color space used in professional printing

Transparency (alpha channel)

What Is PDF?

PDF (Portable Document Format) was created by Adobe in 1993 and has become the universal standard for sharing documents. Unlike TIFF, PDF is not an image format — it is a document format that can contain images, text, vector graphics, hyperlinks, and form fields all in a single file.

PDF is designed for document exchange and long-term archiving. It renders identically on every device and printer regardless of operating system or software version.

PDF supports:

Embedded images (JPEG, PNG, JPEG 2000)

Text layers (searchable, selectable)

Vector graphics that scale without quality loss

Digital signatures and security permissions

Multiple pages with mixed content types

ISO 19005 (PDF/A) for archival compliance

Key Differences

Feature	TIFF	PDF
Primary use	Image storage	Document sharing
File size	Very large	Usually smaller
Multiple pages	Yes	Yes
Text content	No	Yes
Universal opening	Requires image software	Opens in any browser
Print-ready	Professional only	Universal
Compression	Lossless or none	Lossy or lossless

When to Use TIFF

Use TIFF when image fidelity is the absolute priority and file size does not matter:

Medical imaging — X-rays, MRI scans, and pathology slides are routinely stored in TIFF because no data can be lost

Professional photography — photographers keep TIFF masters as archival copies of edited photos

Print production — commercial printers often request TIFF files in CMYK color space

Document scanning — archives, libraries, and government agencies scan records to TIFF for long-term preservation

Scientific imaging — microscopy, satellite imagery, and research data where every pixel value matters

When to Use PDF

Use PDF for almost everything else:

Sharing documents — contracts, invoices, reports, forms

Email attachments — universally readable by any recipient

Government and legal documents — courts, immigration offices, and tax authorities typically require PDF

Combining images into a document — if you have 20 photos to send, one PDF is cleaner than 20 separate files

Printing — PDF guarantees your document prints at the correct size and margins

Converting TIFF to PDF

The most common reason to convert TIFF to PDF is to make the file shareable. TIFF files cannot be opened in most email clients, web browsers, or mobile apps without specialist software. Converting to PDF makes the content accessible to anyone.

imgs2pdf.com handles TIFF to PDF conversion directly in your browser — including multi-page TIFF files where each page in the TIFF becomes a separate page in the PDF. No software installation is needed.

Steps to convert TIFF to PDF:

Go to imgs2pdf.com/tiff-to-pdf

Drop your TIFF file onto the converter

Choose your page size and orientation

Click Convert to PDF

The conversion preserves the full resolution of each TIFF page.

File Size Comparison

A typical scanned document page at 300 DPI:

Uncompressed TIFF: ~25MB

LZW-compressed TIFF: ~8MB

PDF with JPEG compression: ~400KB

PDF with lossless compression: ~3MB

This size difference is why TIFF files are converted to PDF before sharing — the content looks nearly identical but the file is 10–60x smaller.

Summary

TIFF and PDF serve different purposes. TIFF is for storing master copies of images where quality must be preserved without compromise. PDF is for sharing, printing, and archiving documents in a universally accessible format. In most workflows you will create a TIFF, edit it, then export a PDF for sharing or submission.