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PeaZip is a free cross-platform file archiver that provides an unified portable GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX...
Create 7Z, ARC, BZ2, GZ, *PAQ, PEA, QUAD/BALZ, TAR, UPX, WIM, XZ, ZIP files
Open and extract over 180 archive types: ACE, ARJ, CAB, DMG, ISO, LHA, RAR, UDF, ZIPX files and more...
Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives, split/join files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export job definition as script.

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FAQ / ARCHIVE MANAGEMENT > HOW TO ADD OR REMOVE ARCHIVE CONTENT
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HOW TO REMOVE (DELETE) FILE FROM EXISTING ARCHIVE

HOW TO ADD FILE TO ARCHIVE / UPDATE CONTENT

EXCEPTIONS PREVENTING ARCHIVE BEING MODIFIED

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To remove a file or a folder from an existing archive (i.e. ZIP, TAR or 7Z file, but corrent instructions works for modifying any write-supported format) press Cancel or use Delete > "Delete from archive function".
A confirmation dialog will be prompted allowing to cancel the operation if desired.
The removal from an archive means the file or folder is actually deleted, not moved to recycle bin, and it will be likely not recoverable.

To delete the entire archive while it is being browsed, from dropdown menu on the right of "Secure delete" button it is possible to select any supported deletion function - recycle, quick delete, zeroe content (overwrite data with 0s), and secure delete.

How to add file to archive / update content


To add files to an existing archive, with the archive opened in PeaZip file manager, files and folders can be dragged to the archive: the application will show archive update interface and the operation can be confirmed pressing "OK" button.

It could also be used the Add button or menu entry to go to archiving interface; files & folders can be added dropping them to PeaZip application (drag & drop to archive works both when using archive browser and when using archive creation interface) or using input list's context menu. The archive will be not updated until the operation is confirmed with "OK".

If you are trying to add a file which is already featured in the archive, please read how to update existing archive page to understand how update options affect which file (from input list or from current archive, newer or older one, etc) will be kept in the final archive after editing it.

Exceptions preventing archives being modified


Some archives cannot be updated or modified (neither adding nor removing files) because the archive type is read-only supported (solely for extraction or browsing operations), so PeaZip lacking the ability (or being prohibited by the format licensing terms, in the case of RAR files) to modify archive content, data cannot be neither added nor removed.

If solid mode compression is used, that means compression of subsequent data depends on statistical analysis of previous data - which usually brings better compression, fine tuning the statistical analysis of the input.
In this case, removing files from existing archive will result in the need of re-compressing the whole file, which may be cumbersome: this does not prevent the ability to edit the archive content, but it makes the operation slower if large block size is used.
Read more on solid compressionmodify solid archive Wikipedia page.

At current level of development of PeaZip files/folders are added to the archive's root level; this limitation can be avoided i.e. adding data that is already inside a folder, or in a nested subfolder, since the folder nesting will be replicated in the archive.
Hint: to edit an encrypted archive the password must be provided for being able adding or removing content to the password protected file.


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ARCHIVE TO MULTIPLE SEPARATED FILES

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UPDATE FILES ALREADY IN ARCHIVE
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