How to Black Out Text in Pdf So It Cant Be Edited Again

Why redact or remove sensitive content?

Before you distribute a PDF, y'all may want to examine the certificate for sensitive content or private data that can trace the document to you. Use the Redact tools to remove or redact sensitive images and text that are visible in a PDF.

Use the Remove Subconscious Information characteristic to find and remove subconscious content from a PDF. For case, if you created the PDF, the document metadata normally lists your name every bit the writer. You may as well want to remove content that can inadvertently change and modify the document's appearance. JavaScript, actions, and form fields are types of content that are subject to change.

Redact sensitive content (Acrobat Pro)

Redaction is the process of permanently removing visible text and graphics from a document. You use the Redact tools to remove content. In place of the removed items, y'all can have redaction marks that appear as colored boxes, or you can go out the area blank. You can specify custom text or redaction codes to appear over the redaction marks.

If you want to locate and remove specific words, characters, or phrases, use the Detect Text tool instead.

Search and remove text (Acrobat Pro)

Utilise the Find Text tool to find and remove words or phrases in one or more PDFs that incorporate searchable text.

The Notice Text tool doesn't search secured (encrypted) PDFs.

Discover and remove hidden content (Acrobat Pro)

Use the Remove Subconscious Data feature to observe and remove content from a document that you lot don't desire, such as subconscious text, metadata, comments, and attachments. When you remove items, additional items are automatically removed from the certificate. Items that are removed include digital signatures, certificate information added past third-political party plug-ins and applications, and special features that enable Adobe Reader users to review, sign, and fill PDF documents.

To examine every PDF for hidden content before you close it or transport it in email, specify that option in the Documents preferences using the Preferences dialog box.

The selected content is permanently removed when you lot save the file. If you close the file without saving it, echo this process, making certain to salvage the file.

Metadata

Metadata includes data about the document and its contents, such equally the author's name, keywords, and copyright information. To view metadata, choose File > Properties .

File Attachments

Files of any format can be attached to the PDF equally an attachment. To view attachments, choose View > Prove/Hide > Navigation Panes > Attachments .

Bookmarks

Bookmarks are links with representational text that open specific pages in the PDF. To view bookmarks, cull View > Show/Hide > Navigation Panes > Bookmarks .

Comments And Markups

This item includes all comments that were added to the PDF using the annotate and markup tool, including files attached as comments. To view comments, choose Tools > Comments .

Course Fields

This item includes Course Fields (including Signature fields), and all Actions and calculations associated with form fields. If yous remove this item, all class fields are flattened and tin can no longer be filled out, edited, or signed.

Hidden Text

This item indicates text in the PDF that is either transparent, covered up past other content, or the same color as the background.

Hidden Layers

PDFs tin can comprise multiple layers that can be shown or hidden. Removing hidden layers removes these layers from the PDF and flattens remaining layers into a single layer. To view layers, cull View > Prove/Hibernate > Navigation Panes > Layers .

Embedded Search Index

An embedded search alphabetize speeds upward searches in the PDF file. To determine if the PDF contains a search index, choose Tools >Index and then click Manage Embedded Index in the secondary toolbar. Removing indexes decreases file size but increases search time for the PDF.

Deleted Or Cropped Content

PDFs sometimes retain content that has been removed and no longer visible, such as cropped or deleted pages, or deleted images.

Links, Actions And JavaScripts

This detail includes web links, actions added by the Actions magician, and JavaScripts throughout the document.

Overlapping Objects

This particular includes objects that overlap one some other. The objects can be images (composed of pixels), vector graphics (composed of paths), gradients, or patterns.

Sanitize certificate (Acrobat Pro)

Sanitize documents removes all sensitive information, hidden or non, from your certificate so that the data is not passed along when you publish your PDF.

Information technology removes:

Metadata
Embedded content and attached files
Scripts
Subconscious layers
Embedded search indexes
Stored class data
Review and comment information
Comments hidden within the body of the PDF file
Subconscious data from the previous document saves
Obscured text and images
Unreferenced information
Links, actions, and javascripts
Overlapping objects

The sensitive data is permanently removed when you save the file. If yous close the file without saving it, echo this procedure, making sure to salvage the file.

Select a different language version for patterns (Acrobat Pro)

Change the look of redaction marks (Acrobat Pro)

By default, sparse ruby-red outlines appear around images and text you mark for redaction, and black boxes announced in identify of redacted images and text. Yous can prepare the default appearance of redaction marks before yous mark items for redaction. You can also change the wait of redaction marks before yous apply the redactions.

Set the default look of all marks

Backdrop for redaction text (Acrobat Pro)

Custom Text

Displays text yous blazon into the Custom Text choice over the redaction mark.

Font

Displays custom text in the selected font.

Font Size

Displays custom text in the selected point size.

Car-Size Text To Fit Redaction Region

Resizes custom text to fit inside the redacted area. When selected, this option overrides the Font Size setting for the overlay text.

Font Color

Displays custom text in the selected color, which you can change by clicking the color swatch.

Repeat Overlay Text

Fills the redacted expanse with as many instances of the custom text every bit needed, without changing the font size. For case, if you specify the letter x or a hyphen (-) as the custom text, these characters are repeated throughout the redacted area.

Text Alignment

Aligns text to the left, right, or middle.

Redaction codes (Acrobat Pro)

Acrobat uses overlay text to overprint areas selected for redaction. One example of overlay text is a redaction code, which consists of 1 or more code entries from a code set. Acrobat includes the U.Due south. FOIA and U.S. Privacy Human activity code sets that you lot tin use. You can use either codes or custom text to create overlay text. The departure is that redaction codes are text entries that you can save, export, and import. I code set tin can incorporate multiple codes.

Codes don't save the current attributes for overlay text every bit role of the code definition, such as colors, font characteristics, and repetition or size of text. Codes only make the overlay text itself reusable in future sessions and by other users with whom you share code sets. You gear up other attributes for the code in the Redaction Tool Backdrop dialog box.

Create redaction codes and code sets

Edit redaction codes and lawmaking sets (Acrobat Pro)

Apply multiple code entries to a single redaction

Hold your pointer over the redaction mark to see the code entries, each one separated past a comma.

To apply the same code to multiple redactions, set the redaction properties earlier you mark the content. In the secondary toolbar, click Backdrop. Select Utilize Overlay Text, then select Redaction Code. Select a Code Set and a lawmaking entry, then click Add Selected Entry.

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Source: https://helpx.adobe.com/acrobat/using/removing-sensitive-content-pdfs.html#:~:text=Choose%20Tools%20%3E%20Redact.,%2Dclick%2C%20and%20select%20Redact.