How do I crop a scanned image in Adobe Acrobat?

Open your PDF and go to 'Edit'. Select 'Crop pages'. Draw a rectangle over the area you want to keep. Confirm your choice in the dialog box, choosing which pages to apply the crop to.

Why would I need to crop pages in a PDF document?

To remove unwanted white space or margins from scanned documents. To focus on a specific part of a page, like a chart or a signature. To improve the visual presentation of a document by trimming uneven edges.

Crop Scanned Images in Adobe Acrobat — How-to & AI prompts

AI prompts

2 ways to ask · copy any one

AExecute — “help me do it”Rotate and crop the scanned proof‑of‑delivery photos for [delivery=Delivery 207] so they are…+

Rotate and crop the scanned proof‑of‑delivery photos for [delivery=Delivery 207] so they are upright and readable, then save the clean images into the delivery packet for the records folder.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

BImprove — “do it better”Before saving, tidy the proof‑of‑delivery set: crop to remove irrelevant background, rotate so…+

Before saving, tidy the proof‑of‑delivery set: crop to remove irrelevant background, rotate so signatures read left-to-right, ensure each photo filename includes [delivery=delivery number] and [time=shot time], and include a brief caption for each image.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

How to do it

the tool · the steps · what to avoid

1
Open your scanned PDF in Adobe Acrobat Pro.
2
Go to the Tools pane and select Print Production.
3
In the right pane, click Set Page Boxes.
4
In the dialog that appears, select the pages you want to crop using the Page Range options.
5
Click the CropBox drop-down and ensure CropBox is selected.
6
Click the Set To Zero button to remove all margins, or manually adjust the margin values in the Margin Controls to remove only the unwanted white space.
Best practiceFor best results on uneven scans, manually adjust the crop margins for each page to avoid cutting off content.
7
Click OK to apply the crop.
8
Save the PDF to preserve your changes.

In the appWith the API

You can preview the crop area before applying changes to ensure no important content is removed.

This runs in the Acrobat app - there is no separate API for this task.

Glossary

words on this page

CropTo cut off the unwanted outer parts of an image.ExampleI will crop the photo to remove the distracting background elements.

SanitizeTo remove sensitive or private information from a document before sharing it.ExampleRemember to sanitize the document by redacting personal details before sharing it publicly.

PDFA common file type used to share documents that look the same everywhere.ExampleShe saved the brochure as a PDF so everyone would see the exact same layout and fonts.

The real tasks

the one, listed here

Rotate and crop scanned proof-of-delivery photos so the document pack is tidy and readable.

FAQ

about this task

Open your PDF and go to 'Edit'.
Select 'Crop pages'.
Draw a rectangle over the area you want to keep.
Confirm your choice in the dialog box, choosing which pages to apply the crop to.

Cropping only hides parts of a page from view; the data is still in the file and can be recovered. Sanitizing, however, permanently removes content and data from the PDF. If you need to ensure sensitive information is gone forever, you must sanitize the document, not just crop it. Cropping is for visual clean-up, while sanitizing is for security.

To remove unwanted white space or margins from scanned documents.
To focus on a specific part of a page, like a chart or a signature.
To improve the visual presentation of a document by trimming uneven edges.

Yes, you can easily undo a crop. Because cropping only hides content, the original data is still in the file. You can go back to the 'Crop pages' tool and adjust the crop box or remove it entirely. This will reveal the hidden content again, allowing you to fix any mistakes.

When you crop a PDF, the file size generally does not change much because the content outside the crop box is still part of the file, just not visible. This means the data is still there, taking up space. If you need to reduce file size by removing hidden content, you would need to use a different tool, like 'Optimize PDF' or 'Sanitize', which truly deletes the data.

Crop Scanned Images

When to use it

AI prompts

How to do it

Glossary

The real tasks

Who does this

FAQ

Sources

Adobe help