IMSLP:File formats

Free public domain sheet music from IMSLP / Petrucci Music Library
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On this page you can find some information on the file formats used in IMSLP. If you want to download the PDF file of the score you're currently looking for, you clicked the wrong link. Please go back and click on the score description to retrieve the PDF.



These are the only file formats IMSLP accepts for scores. Raw image files, whether loose or ZIPped, will be removed.


Portable Document Format (PDF) is the main type of document used here on IMSLP for music scores. To view PDF files, download one of the recommended clients:

  • Foxit PDF Reader - A free PDF reader. This is the recommended PDF reader for IMSLP; the official Adobe PDF reader is considerably slower.
  • PDF Creator - Printer driver that lets you print to PDF (Windows only).
  • PDF Split and Merge - A graphic Java program which allows you to merge/split PDF files. More information on this program can be found here. Recommended for PDF manipulation.
  • PDFtk - A command-line program which allows you to merge/split PDF files, among a list of other things.

For Ubuntu users who browse the web with Firefox, click here to install Mozplugger. Mozplugger embeds the Evince PDF Reader (among other things) inside Firefox. Evince is installed by default, but you can make sure by clicking here.

For Mac (OS X) users, creating PDF files is possible without additional software. A tutorial can be found here.

Note: Mac users should not use Preview to open pdf files. Preview is not able to display some of the files on IMSLP correctly.

Related Pages


IMSLP allows users to upload the source files (.sib, .mus, .ly, etc.) of their own typesets. All of the relevant files should be archived in a single ZIP. Each source file must also be uploaded separately in PDF format. Isolated ZIP files will not be accepted, nor will loose notation files. Note that this is the only permitted use of the ZIP format.

To extract files from a ZIP file, you can use one of the following applications:

  • 7-Zip - 7-Ζip is an open source application for both Windows and Linux that extracts various archive files including ZIP files.
  • ZipIt - ZipIt is an application for Macintosh with which you can extract/create ZIP files.

Note, also, that in the latest version of most known operating systems (Windows, Linux, Macintosh) there are pre-installed applications with which you can open ZIP files (Windows XP and up have WinZip installed, in Linux there is Ark and 7-Zip etc).


Permitted recording file types

  • Audio: MP3, OGG, MP4, FLAC, MIDI
  • Video: MP4

There is no additional information about these formats at the moment, but please add information to this page if you are familiar with any of the above formats.


Raw PNG and JPG images can be uploaded using Special:Upload, found in the 'toolbox' section in the left sidebar. The following are accepted uses for these formats:

  • Composer pictures and signatures
  • Sample (preview) images for individual PDFs
  • Thumbnail images for groups of PDFs

Deprecated Formats


DJVU is a file format very similar to PDF, and is conceived as a replacement for PDF. DJVU is especially designed for scanned documents, so the document legibility is higher than PDF at the same file size. Detailed information can be found here.

Some applications that can view/create DJVU files:

  • WinDJView - The best free DJVU viewer out there (it's open source too). Its interface is almost exactly like Acrobat Reader, except it is much faster.
  • MacDJView - Basically WinDJView for macs.


File formats used by Finale and Score. The code is not interchangeable between the two programmes.

Finale MUS files can be read and printed using the free Finale Reader.

MUS files cannot be uploaded directly, but instead should be archived in a ZIP file (see above)


File format used by Sibelius. SIB files can be read/printed after installing the free Scorch plugin.

SIB files cannot be uploaded directly, but instead should be archived in a ZIP file (see above)

See also

Personal tools
Browse scores
Browse recordings
For iPhone & iPad


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