Custom Conversion

Partners provides multiple ways to download files from assets: you can download the original file, exactly as it was uploaded; depending on the type of file you might be able to download pre-set variants of the original file (for example, a lower resolution version of the original file, or one in a different format; or if you are permitted to, you can specify your own requirements for the downloaded file.

If you have access to download custom variants of files, you will see a ‘Custom conversion…’ button alongside the file under the ‘Downloadable Files’ tab on the asset information page. If you click this for the desired asset, you will be asked to select the type of file that you want to download or the parameters to be used to convert the file.

If you are asked for the type of file you want to create, depending on the original file you will see two or more of these options:

  • Single Image
    Converts the original file to a single image in the supported output formats. If the source file contains multiple frames or pages, only the first frame or page will be converted.
  • Video Transcode
    Converts the source video file into another format, size and/or quality.
  • Document Conversion
    Converts the source word processing document into a different format.
  • Spreadsheet Conversion
    Converts the source spreadsheet document into a different format.
  • Presentation Slides Conversion
    Converts the source presentation document into a different format.
  • Project File Conversion
    Converts the source project management file into a different format.
  • Diagram Conversion
    Converts the source diagram file into a different format.
  • Audio Transcode
    Converts the source audio or video file into a different format and/or quality. If the source is a video file, the audio is extracted from the video.
  • Convert to PDF
    Converts the source file into a PDF.

Once you have made your selection, you will be asked for additional parameters depending on the chosen type.

Single Image

Size, Up-scale and Custom Dimensions

You can select either to use the same size as the original file, or you can specify your own size. If you choose to specify your own size, then you can also choose whether the image should be up-scaled i.e. if the original file is smaller than the size you are requesting, whether it should be stretched to fit the new size.

Output Type, Background Colour and JPEG Quality

You must select the format of the file that you want to create. Common choices are JPEG or PNG. All formats require you to specify a background colour to use to fill any transparent areas in the source image or any borders created by resizing the image. Some formats support having a transparent background rather than a solid colour. The JPEG format has an additional JPEG Quality option, which must be a whole number between 0 and 100; higher JPEG Quality will result in a larger file size.

See Image Conversion for more details

Video Transcode

Size, Up-scale, Padding and Padding Colour

You can select either to use the same size as the original file, select from one of the common standard sizes, or you can specify your own.

If you select anything other than ‘Keep original size’ then you will be presented with options for Up-scale and Padding. If the source file is smaller than the size that you have selected, then the Up-scale option will be used to determine if the video will be increased in size to fit.

If the source ratio does not match the output ratio, or you have selected not to Up-scale, then the Padding option can be used to determine if bars are added to the video to fill the additional space. If you select to add padding, you must specify the colour to use.

Output Type, Audio Quality and Video Quality

You must select the format of the file that you want to create. This will depend upon how you want to use the file, and we cannot offer guidance here on which option would be best. Some of the formats allow you to specify the Audio Quality and the Video Quality; higher qualities will result in a larger file size.

See Video & Audio Conversion for more details

Audio Transcode

Output Type and Quality

Select the format of the file that you want to create. MP3 and Ogg Vorbis allow a quality level to be specified; a higher quality will result in a larger file size.

Duration

You can specify the maximum duration to convert from the original file. This is always measured from the start of the source file. If this field is left empty then the entire original file will be converted.

See Video & Audio Conversion for more details

Document Conversion, Spreadsheet Conversion, Presentation Slides Conversion, Project File Conversion and Diagram Conversion

These conversions only have one option, that allows you to select the format of the file that you want to create.

Convert to PDF

No additional options are available.

Reduction in Quality and Fidelity

Most conversions will result in a loss in quality and fidelity. For example, if you convert an Excel Spreadsheet to a CSV, you will lose all of the formatting, calculation etc. features that an Excel Spreadsheet provides. If you convert a TIFF to a JPEG, even at the highest quality setting there may be some loss in quality (although it may not be perceivable).

You cannot increase fidelity by using conversion. For example, converting a JPEG to a PDF will not automatically split an image into layers, nor convert text in the image into real text in a PDF – it will just be an image inside a PDF file. You also cannot increase quality by using conversion, so converting a low quality video using high quality settings will not improve the quality over the original.

Background Processing of Custom Conversions

If you request a Custom Conversion, it can take some time process depending on the original file and what you are trying to achieve. Certain long-running tasks, such as Custom Conversion, will be added to the list of items in your Background Jobs. These tasks will continue running in the background, even if you navigate to a different section of Partners. You will be notified when the task is complete through the usual notification methods. After the conversion is complete, you can download the finished file.