See also our complete image to PDF guide
TIFF files are the gold standard for scanners and archival imaging — but they're terrible for sharing. A single multi-page TIFF can weigh 50-100+ MB, and most people can't open them. ImageConvert.to converts TIFF to PDF instantly — free, private, no file size limits.
Why Convert TIFF to PDF?
| Document | TIFF Size | PDF Size | Reduction |
|---|---|---|---|
| Single page (A4, 300 DPI) | 25 MB | 500 KB | 98% |
| 10-page document | 250 MB | 3 MB | 99% |
| High-res photo | 50-100 MB | 2-5 MB | 95% |
- Universal compatibility — Everyone can open a PDF, on any device
- Multi-page support — PDF displays all pages correctly; TIFF viewers often only show the first
- Professional expectations — PDF is the standard in business, legal, and medical contexts
- Massive file size reduction — 95-99% smaller than the original TIFF
How to Merge Multiple TIFF Files Into One PDF
- Scan your pages — each creates a separate TIFF file
- Open imageconvert.to
- Drop all TIFF files into the converter at once
- Select PDF as the output format
- Convert — all TIFFs merge into a single multi-page PDF
- Download your combined document
This runs locally in your browser. For sensitive documents (legal files, medical records, financial statements), your scans are never uploaded to any server.
Comparison with Other Tools
| Feature | ImageConvert.to | tiff2pdf.com | Smallpdf | Adobe Acrobat |
|---|---|---|---|---|
| Price | Free (unlimited) | Free (limited) | Freemium | Paid |
| Privacy | Local processing | Server upload | Server upload | Server upload |
| Multi-TIFF merge | Yes | Yes | Yes | Yes |
| File size limit | None | 20 files max | Limited | 100 MB |
Common TIFF to PDF Workflows
- Scanned document archival — Convert office scanner output to compact, shareable, searchable PDFs
- Legal and medical records — Courts, insurance companies, and hospitals expect PDF format
- Architectural plans — Large-format TIFF scans become portable PDFs for easy markup
TIFF vs PDF: When to Use Each
| Use Case | Best Format |
|---|---|
| Archival master copy | TIFF (lossless quality) |
| Sharing with others | |
| Email attachment | |
| Editing/retouching | TIFF |
| Legal/official documents |
Best practice: Keep your original TIFF as the master copy and convert to PDF for distribution.
Tips for Better Conversion
- 300 DPI for text documents, 600 DPI for fine print or detailed graphics
- Grayscale for text-only documents — reduces TIFF size by 60-70%
- 150-200 DPI for large-format drawings where file size matters
Related Guides
- Convert any image to PDF
- Convert images to PDF on iPhone
- Convert images to JPG
- Convert images between any formats
FAQ
How do I convert a TIFF file to PDF?
Open imageconvert.to, drop your TIFF file, select PDF, and click convert. You can also merge multiple TIFFs into a single PDF by dropping them all at once.
Is TIFF or PDF better for scanned documents?
TIFF is better for archival master copies (lossless). PDF is better for sharing, emailing, and daily use (universal, compact). Best practice: keep TIFF originals, convert to PDF for distribution.
Can I convert a multi-page TIFF to PDF?
Yes. ImageConvert.to handles multi-page TIFF files. You can also drop multiple single-page TIFFs and merge them into one multi-page PDF — all free and without any server upload.