Previewing files
TODO:Preview Proofapplies read,the uploadactive images,rules updateand links.shows the resulting names, without making any changes to files on disk. It is the essential step between setting up rules and committing to a rename.
Workflow
ReNamer showsWhen a preview ofis triggered, each marked file is passed through the newrule filenames,stack in order. Each rule transforms the name produced by the previous one, so thatthe youfinal result in the New Name column reflects all active rules applied cumulatively. This is why the order of rules matters — the same rules in a different sequence can decideproduce whethera yourdifferent outcome.
Only marked files and marked rules are workingincluded. as expected. If someUnmarked files showare unexpectedskipped results,and edittheir someNew Name column remains empty. Unmarked rules are ignored, which is a convenient way to test the effect of individual rules without removing them from the stack. See Managing rules andfor checkmore detail.
Preview results
After a preview, the previewFiles again.
Walkthrough
Let us see howreflects the preview works.
In the example below, there are three rules in the stack:
Replaces "." "_" "%20" "-" with a space.Strips the contents of round brackets and removes unnecessary spacing.Capitalizes the first letter of the name and makes all other letters lowercase.
The ReNamer preview is shown below.
We can see that:following:
InThe State column indicates whether each file is ready to rename or has a potential issue. A green arrow means theFilesfilepane,istheready.StateA warning sign flags a problem such as a duplicate name or an invalid character.- The New Name column shows
whethertherenamingresultingwill face any problems. In this case, the green arrow identifies files that are ready to go, while files with potential problems are marked with a warning sign. TheNew Namecolumn shows a preview of the new names.name. Ifyou havethe Highlight changed names optionenabledisall changedenabled, nameswillthatbedifferhighlighted during preview (you can changefrom thehighlight color in the settings). The first name is unchanged, so it is shown in black. The remaining names are affected by the rules, so theyoriginal are shown inred.a distinct colour, making unchanged files easy to spot.- The
checkErrorboxescolumnin theRulespane allow you to disabledescribes anyruledetectedtemporarily. (Disable one of the rules and see the effect on the renaming.) The check boxes in theFilespane allow you to exempt any file/folder from the current renaming. New names are not shownissue forsuchthatunmarkedfiles.file.
ThereNote that preview validation can flag common problems in advance, but not every possible failure can be detected before the actual rename. See Validation for more detail on how warnings are many program options for previewing and preview process can vary based on those settings. For example, you can set it to refresh the preview automatically when new files and/or rules are added.generated.
You may also want to customize theThe columns displayed in the Files pane pane.can Forbe example,customised. manyMany users prefer to seeshow the Path and New pathPath columns.
- to
- see full paths alongside names. To
customizetoggle columns, right-clickonthe column header row. See Files header menu for more detail.Example

The example above has three rules in the
stripstack: two Clean Up rules thatcontainsreplaceallpunctuationcolumn-headers.charactersAandmenustrippopsbracketupcontents,allfollowedavailablebycolumns.aSelectCase rule that capitalises thecolumnsfirstyouletterwant. From now on, ReNamer remembersof the name.Do not change me.docis unaffected by the rules and its newsettings.name is shown in the same colour as the original.- The remaining files are transformed and their new names are highlighted.
- The last file produces
This is a.test, the same result as the file above it. The Error column flags this as Duplicate in the list, which would cause a conflict at rename time.
ManualAutomaticmodeand manual previewIfByyoudefault,dopreviewnotupdatesselectautomatically whenever files or rules change. This behaviour is controlled by theAutomaticAuto preview option in Preview settings.When Auto preview is disabled, preview must be triggered manually by clicking the Preview
mode, you must press the
buttontoorseepressingtheF5.preview.ThisManualPreview'mode isactuallyusefulifinyoutwodosituations:not- When
toworkingmiss out the subtle changes that can happen to the file names when you are adding new rules or if you adjust the file names manually after preview. It can also save youwith alot of time when processinglargeamountnumber of files,sowhereinstead of generagin aautomatic preview on every changeyouwouldcanbe slow. - When using manual editing to fine-tune names after a preview, as triggering a new preview
manuallywouldonlyoverwritewhenthoseyouedits.
wantneed to.WhileInusingboththemodes,ManualfilesPreviewmode, keep the following in mind:Files will beare renamed exactly asyou seeshown in thepreviewpreview.(WYSIWYGpolicy).If youchange the items manually, these changes are lost if you press the
button.
