Resize TIFF Images
A scan, a print export or a camera file arrives as a TIFF that is far larger in pixels than you need, and you still want a TIFF afterwards. This resizer changes only the width and height and saves the picture as a TIFF again, on your own device. It reads the first page of the file, so check the notes below if your TIFF has several pages.
How to resize TIFF images
- Add your TIFF files by dropping them, clicking the drop zone or pasting.
- Choose the new size: a percentage, a maximum width and height, or an exact size. The quick sizes fill in common values.
- Press Resize and compare the old and new size of each file. The file type stays the same.
- Download each file or all of them as a ZIP.
When to resize, and when not to
- A TIFF has more pixels than your workflow needs and you want to keep working with TIFF files.
- A print or layout job needs a TIFF at a specific width and height.
- You want to prepare several scans at one size before filing them together.
- Do not use this on the only copy of a multi-page or high-bit-depth master, because it writes a single-page eight-bit file. Keep the original safe, and use the Image Converter if you want another file type.
What changes
- The output is a baseline uncompressed eight-bit TIFF with an alpha channel, holding one image.
- Only the first page is kept. A multi-page TIFF loses its other pages.
- Sixteen-bit and compressed TIFF files are read, but they are written as uncompressed eight-bit files, so the new file can be larger than the original even after the pixels are reduced.
- Metadata and tags, such as colour profiles and scanner details, are not kept.
- Transparent areas stay transparent.
Why a smaller TIFF can still be a large file
TIFF files often store their pixels without compression. For an uncompressed file the size follows the pixel count, so halving both the width and the height leaves about a quarter of the pixels and a file of roughly that proportion. Reducing the pixel size is therefore one of the most direct ways to shrink a TIFF.
The catch is that this tool always writes an uncompressed file. If your original used a compression method, the resized copy can end up bigger than the original unless you reduce the pixels enough. Compare the sizes shown next to each file before you replace anything.
What the resized TIFF does not keep
The new file holds one picture at eight bits per channel. A TIFF can hold many pages, deeper colour and a lot of descriptive information, and none of that is carried across. Only the first page is read, so a scanned document with a page per sheet becomes a single picture.
For an archive or a master that you may need again, keep the original TIFF and treat the resized file as a working copy. If you need every page, split the file in your scanning program first and add the separate files here.
Choosing a size when there is no quality slider
TIFF output has no quality setting, so the quality slider does not apply. You control the file only through its pixel size. Use Percent to scale by one amount, Max size to keep the picture inside a box without enlarging it, or Exact size for a fixed width and height with Fit inside, Fill and crop or Stretch.
The Aim for a file size option works for TIFF only by making the picture smaller in pixels, because there is nothing else to trade away. If you need a very small file and the type does not matter, a lossy format would reach it with less loss of size, which is a job for the Image Converter.
Privacy: your files stay on your device
- The tool decodes, resizes and encodes your pictures with your browser. The files are never sent to a server.
Frequently asked questions
Why did my multi-page TIFF become one picture?
This tool reads the first page only. Split the pages in a scanning or PDF program first, then resize the separate files.
Why is my resized TIFF bigger than the original?
The new file is written uncompressed. If the original used compression, the pixel reduction may not make up for that. Reduce the size further or compare before replacing the original.
Is there a quality slider for TIFF?
No. TIFF output is not lossy, so the file changes only with the pixel size.
Will the colour profile and other tags stay?
No. Metadata and tags are not written to the new file.
Can I get a TIFF under a set number of kilobytes?
Switch on Aim for a file size and enter the number. The tool reduces the pixels until the file fits, or tells you it could not reach it.
Is my file uploaded?
No. The TIFF is read and resized in this browser tab and stays on your device.