Convert SD1 to FLIF

By using our efficient and user-friendly SD1 to FLIF converter, you can save yourself from the tiresome process of manually converting numerous .sd1 files into flif format for hours.

reaConverter is an offline file converter software that allows your to convert from SD1 file format to FLIF format.

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How to Convert Multiple SD1 Files to FLIF?

1. Download and Install reaConverter

reaConverter is quick to download, install and launch. This standalone software is extremely efficient in managing a wide range of batch conversions. reaConverter is incredibly powerful and boasts an extensive variety of features.

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Install reaConverter

2. Load your SD1 files

Start reaConverter and load all the .sd1 files you intend to convert into .flif. The software supports multiple SD1 conversion and processes all files locally on your computer.

Select SD1s from a folder or by drag-and-dropping them directly into the reaConverter window.

Load your SD1 files into reaConverter

3. Select FLIF as output format

Pick the FLIF as output format and choose the destination folder where you want to save new .flif files.

Select FLIF as output format

4. Start SD1 to FLIF conversion

Then simply press Convert button and your conversion will begin in no time!

Screenshot

Once the conversion is complete, you can find your FLIF files in the destination folder you selected.

SD1 to FLIF Converter

reaConverter offers the fastest, simplest solution for converting your SD1 files into FLIF in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting SD1 files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on May 24, 2025
"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."
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Roger Cook
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"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."
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"Our volunteer team uses reaConverter to prepare images for fundraising campaigns. The learning curve was minimal, and the results are professional-grade. The customer support team even helped us customize a workflow — fantastic service!"
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"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
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Elena Anderson
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"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
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R. Lewis
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"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
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Walter Morgan
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SD1 to FLIF Conversion: FAQ

What are SD1 files?

The SD1 extension is attached to RAW images captured using some models of Sigma cameras. Sigma is a Japanese brand producing various types of photographic devices and cameras. The brand is best known for its lenses that can be used on cameras manufactured by several other companies, including Nikon, Canon and Panasonic. SD1 is part of a group of extensions attached to images shot in RAW mode on Sigma devices, including SD0 and SD2. All are considered rare and probably difficult to open using regular image viewers.

What are FLIF files?

FLIF (Free Lossless Image Format) is a royalty-free format launched at the end of 2015 as "work in progress" with the aim of offering a better alternative for storing lossless images than the existing PNG, WebP, BPG, JPEG2000 and JPEG XR. FLIF provides similar image quality as the other extensions, but in a file size than can be up to 74% smaller. The new format uses a form of the Adam7 algorithm for compressing images, offering progressive interlacing that allows users to obtain a reasonable encoding of an image even from a partial download.

Can reaConverter convert SD1 to FLIF?

Yes! reaConverter instantly converts .sd1 to .flif with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert SD1 to FLIF online?

If you only need to convert a few SD1 files to FLIF format, feel free to try our free online free online SD1 to FLIF converter — perfect for small batches with no installation needed!

How can I turn SD1 files into FLIF on my computer?

The best way to change SD1s to FLIFs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from SD1 to FLIF.

How can I automate SD1 to FLIF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert SD1 files to FLIF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line sd1 to flif converter for batch processing.

What else can I do with reaConverter?

Change file dateConvert GIS filesConvert DICOM imagesPicture resizerConvert vector images

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