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Convert PNG to TIFF Online Free — Fast Batch Conversion
How to Convert Images Online
1Upload your PNG
Click the upload button or drag and drop your PNG file. Upload up to 10 files for batch conversion or multi-page TIFF assembly.
2Choose TIFF output
TIFF is selected by default. LZW lossless compression is applied automatically.
3Download
Click Convert and download your TIFF file. For multiple files you get a multi-page TIFF or ZIP archive.
Supported Image Formats
PNG
Lossless format that preserves every pixel. Best for screenshots and logos.
TIFF
Professional lossless format used in printing and photography.
HEIC
Apple photo format used by iPhone and iPad. High quality with small file size.
HEIF
High Efficiency Image Format — same as HEIC, used on Apple devices.
WebP
Modern image format by Google. Up to 30% smaller than JPG with the same quality.
JPG
Universal format for photos. Supported everywhere, great balance between quality and file size.
GIF
Classic format for simple animations. Supports transparency and up to 256 colors.
BMP
Uncompressed bitmap format. Maximum quality but very large file size.
AVIF
Next-gen format with excellent compression. Up to 50% smaller than JPG.
PPM
Portable Pixmap format used in Unix/Linux environments.
HDR
High Dynamic Range format storing extended brightness data.
FITS
Flexible Image Transport System used in astronomy and science.
PDF
Portable Document Format. Convert PDF pages to JPG, PNG or WebP images.
AVIF vs WebP vs HEIC vs JPG
Quick comparison to help you choose the right format
AVIF
- Size: Up to 50% smaller than JPG
- Browsers: Chrome, Firefox, Safari
- Transparency: ✓
- Best for: Web performance
WebP
- Size: 25-35% smaller than JPG
- Browsers: All modern browsers
- Transparency: ✓
- Best for: Web compatibility
HEIC
- Size: ~50% smaller than JPG
- Browsers: Safari only
- Transparency: ✓
- Best for: iPhone storage
JPG
- Size: Baseline
- Browsers: All browsers & apps
- Transparency: ✗
- Best for: Universal sharing
Frequently Asked Questions
- Does converting PNG to TIFF lose quality?
- No. Both formats are lossless. Every pixel value — including full alpha transparency — is preserved exactly. The conversion changes only the container format, not the image data.
- Will the file size change?
- Slightly. PNG uses DEFLATE with adaptive row filters; TIFF typically uses LZW. The resulting TIFF may be 10–15% larger or smaller than the source PNG depending on image content. Both are lossless regardless of size difference.
- Does PNG to TIFF preserve transparency?
- Yes. PNG 8-bit alpha channels convert to TIFF unassociated alpha. Semi-transparent pixels are preserved exactly — no thresholding or flattening occurs.
- Can I combine multiple PNGs into one multi-page TIFF?
- Yes. Upload multiple PNG files and Convertify assembles them into a single multi-page TIFF with each PNG as a separate page.
- Does TIFF preserve 16-bit PNG color depth?
- Yes. Convertify detects the source bit depth and writes the TIFF at matching depth — 8-bit PNG produces 8-bit TIFF, 16-bit PNG produces 16-bit TIFF.
- Why convert PNG to TIFF instead of keeping PNG?
- Only when a downstream system requires TIFF specifically: prepress printing, archival standards, multi-page document assembly, or color-managed workflows with embedded ICC profiles. For web and general use, PNG is more widely compatible.
- Can browsers display TIFF?
- No. Chrome, Firefox, and Edge do not render TIFF natively. Safari has limited support. TIFF is not a web format.
- Does Convertify handle PNG-8 (indexed color)?
- Yes. Indexed-color PNGs are converted to their equivalent RGB or RGBA representation in the TIFF output, preserving the visual appearance exactly.
Lossless to lossless: what changes and what stays
Both PNG and TIFF store pixel data without lossy compression, so the conversion is bit-exact for the image content. A 24-bit PNG and a 24-bit TIFF of the same image contain identical RGB values. What changes is the container: PNG uses DEFLATE compression with per-row prediction filters, while TIFF typically uses LZW or ZIP/Deflate compression.
Since both use variants of the same underlying DEFLATE algorithm (in the case of ZIP-compressed TIFF), the resulting file sizes are often comparable. PNG may be slightly smaller on some images due to its adaptive row filters, while TIFF with LZW may be slightly smaller on others. The size difference is typically within 10–15% in either direction.
Transparency: PNG alpha to TIFF alpha
PNG supports a full 8-bit alpha channel (256 levels of opacity per pixel). TIFF also supports alpha — stored as an extra sample per pixel — but the handling is more nuanced. TIFF defines two alpha types: associated (premultiplied) and unassociated (straight). Most professional software expects unassociated alpha in TIFF.
Convertify writes unassociated alpha when converting transparent PNGs to TIFF, ensuring compatibility with Photoshop, Affinity Photo, and prepress tools. Semi-transparent pixels from PNG carry through exactly — no threshold, no flattening, no quality loss on the alpha channel.
Note that some older TIFF readers (particularly fax-era software and legacy document management systems) do not support alpha channels in TIFF and may display transparency as black or garbage data.
16-bit PNG to 16-bit TIFF
PNG supports 16-bit per channel color (48-bit RGB or 64-bit RGBA). TIFF also supports 16-bit per channel — and this is one of the key reasons to convert. Many professional editing applications (Photoshop, Lightroom, Capture One) handle 16-bit TIFF more reliably than 16-bit PNG in their import/export pipelines.
Convertify detects the source PNG bit depth and writes the TIFF at matching depth. An 8-bit PNG produces an 8-bit TIFF; a 16-bit PNG produces a 16-bit TIFF. No bit-depth conversion or quantization occurs unless you explicitly request it.
When PNG to TIFF makes sense
Convert PNG to TIFF when a downstream workflow specifically requires TIFF format: prepress and commercial printing (TIFF is the standard handoff format for print production), archival systems that mandate TIFF for long-term preservation (ISO/IEC 10918 compliance), multi-page document assembly (combining multiple PNG screenshots or scans into one TIFF file), and color-managed workflows where embedded ICC profiles and CMYK conversion are needed.
For web delivery, keep PNG or convert to WebP or AVIF — TIFF has zero browser support. For general-purpose sharing, PNG is more universally compatible than TIFF across consumer software.
Multi-page TIFF from multiple PNGs
A common workflow in documentation, QA testing, and legal work: capture multiple screenshots as PNG, then combine them into a single multi-page TIFF for submission. Upload multiple PNG files to Convertify and they are assembled into one TIFF with each PNG as a separate page.
Page order follows upload order. Each page retains its original dimensions — mixed-size PNGs (a 1920×1080 screenshot followed by a 800×600 dialog capture) are stored at their native sizes within the same TIFF file.
How Convertify converts PNG to TIFF
libvips decodes the PNG via its built-in PNG loader, reading full RGBA data (including any 8-bit or 16-bit alpha channel), embedded ICC profiles, and gamma metadata. The decoded VipsImage is passed to vips_tiffsave() with LZW compression, the original color profile preserved, and alpha written as an unassociated extra sample.
For multi-file uploads, each PNG becomes a separate IFD in the output TIFF. The conversion is entirely lossless — the decoded pixel values from PNG are stored bit-for-bit in the TIFF container. Memory usage stays bounded through libvips's streaming pipeline.