TIFF to PDF
Convert TIFF images (single or multi-page) to PDF. 100% in your browser — nothing uploaded.
Select TIFF files
or drop them here — multi-page TIFFs supported
Your file is ready
Processed entirely in your browser — the file never left your device.
How to convert TIFF to PDF
Three steps. Multi-page TIFFs become multi-page PDFs.
Select TIFFs
Drop one or more TIFFs. Multi-page TIFFs are fine.
Configure
Page size and margin.
Download
One PDF with all TIFF pages in order.
What is "TIFF to PDF"?
TIFF (Tagged Image File Format) is a 1986 image format still beloved by scanners, fax machines, and archival pipelines. It stores images losslessly, supports multi-page documents in a single file, and is the default output of many enterprise document-management systems and medical imaging tools. Its downside: most consumer applications and email clients don't preview TIFFs cleanly, and "TIFF" itself is more of a container than a single format — there are dozens of internal compressions.
Converting TIFF to PDF means wrapping each TIFF page into a PDF page, producing a single document anyone can open. The result looks identical to the source TIFF because we don't re-encode the pixels — the only thing that changes is the wrapper around them.
How TIFF to PDF works in your browser
Your TIFF file is read into memory by your browser. We hand the bytes to UTIF.js, the open-source TIFF decoder behind the Photopea image editor. UTIF.js parses every "image file directory" (IFD) — that's one per page in a multi-page TIFF — decompresses the pixels, and converts them to 8-bit RGBA. We wrap each frame in a lossless PNG header so pdf-lib can embed it without re-encoding, then build the PDF.
All of this happens inside your tab. There is no upload, no server, no account. UTIF.js + a tiny PNG encoder + pdf-lib are all pure JavaScript and run identically in any modern browser. Run the tool offline and it still works for any TIFF you have already loaded into the tab.
Common use cases
- Sharing scanned documents. Office scanners default to TIFF. Convert to PDF before emailing — most recipients can't preview TIFFs.
- Archiving fax output. Multi-page fax TIFFs become a single tidy PDF.
- Submitting medical or legal scans. Many portals accept PDF only.
- Bundling architectural drawings. CAD systems often export TIFFs; consolidate them into one PDF for review.
- Preserving image quality. The conversion is lossless — every pixel in the source TIFF lands in the PDF unchanged.
Privacy & security
Scanned documents are the highest-stakes PDF use case: IDs, contracts, medical reports, court filings. Most online TIFF-to-PDF services upload your file. imisspdf converts everything in your browser tab with UTIF.js and pdf-lib. There is no upload, no server-side temp file, and no retention window. See our iLovePDF privacy review for what the standard upload model actually looks like.
Frequently asked questions
Yes. A multi-page TIFF (common with scanners and fax machines) is decoded into multiple "image file directories" by UTIF.js — each one becomes one PDF page in the output. Drop a single multi-page TIFF and you get a multi-page PDF with no extra steps.
TIFF allows a wide range of internal compressions (LZW, PackBits, CCITT Fax, JPEG, Deflate, etc.). UTIF.js supports the common ones, but some unusual or proprietary variants (especially from RAW camera files like .CR2 or .NEF) cannot be decoded. If yours fails, open it in Preview/Photoshop and re-save as a standard uncompressed or LZW TIFF, then try again.
No. UTIF.js decodes the TIFF inside your browser tab, and pdf-lib builds the PDF the same way. Nothing is uploaded. You can verify this in your browser's Network tab while you run the conversion, or simply unplug from the internet — the tool still works.
Limited only by your device's RAM. A 50 MB multi-page scanned TIFF is no problem on a modern laptop. A 500 MB TIFF (rare) may exceed mobile memory. If you hit a limit, split the multi-page TIFF in your image editor first.
Yes, pixel-for-pixel. We decode the TIFF to RGBA, wrap it as a lossless PNG, and embed it in the PDF without re-encoding. There is no quality loss in the conversion. The PDF page will be sized exactly to the TIFF dimensions if you pick "Auto" page size, or scaled to fit the page you choose.
Tips for best results
- Use Auto for true 1:1 conversion. The PDF page will match the TIFF dimensions exactly — best for archival accuracy.
- Pick A4 or Letter for printable output. If the recipient will print the PDF, a standard page size with a small margin avoids edge clipping.
- If a TIFF fails, check its compression. Open it in Preview/Photoshop and re-save as uncompressed or LZW TIFF. UTIF.js handles those reliably.
- Multi-page TIFFs just work. No need to split them first — drop the file and you get a multi-page PDF.
- Compress the result if needed. Lossless image PDFs are larger than JPG-based ones. Pipe the output through Compress PDF for smaller files.
Related PDF tools
- JPG to PDF — smaller files when source is photographic.
- PNG to PDF — better for screenshots and diagrams.
- Merge PDF — combine the new PDF with other PDFs.
- Compress PDF — shrink the resulting PDF if needed.