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Cropping does not reduce file size because information is merely hidden, not discarded.
When you prepare a PDF for printing, you can change the Art, Trim, and Bleed areas for a PDF page in the Crop
dialog box. If you want to see indicators of these areas in the document pane, select the Show Art, Trim, & Bleed Boxes
option in the Page Display preferences. (In the Preferences dialog box under Categories, select Page Display.)
Crop empty areas around page content
1 Choose Tools > Pages > Crop.
2 Under Margin Controls, select Remove White Margins.
Crop one or more pages
1 Choose Tools > Pages > Crop.
2 In the pop-up menu in the upper left corner, leave CropBox selected, and then adjust values for the Margin
Controls: Top, Bottom, Left, and Right.
A black rectangle in the thumbnail page display shows the adjusted boundaries of the cropped page.
3 (Optional) One by one, select ArtBox, TrimBox, and BleedBox in the pop-up menu, and adjust the Margin Control
values each time. The adjusted boundaries appear as rectangles in the thumbnail page display: red, green, and blue,
respectively.
4 Select other options under Change Page Size, as appropriate for your PDF.
5 As needed, specify Page Range settings.
Because the Crop property is selected by default, the margin values that you specify determine the final Crop boundary.
The dialog box displays each selected property as a differently colored box in the preview area. Select Show All Boxes
to preview all properties at once. Select each property that you want to adjust.
Crop a page with the Crop tool
1 Choose Tools > Pages > Crop.
2 Drag a rectangle on the page you want to crop. If necessary, drag the corner handles of the cropping rectangle until
the page is the size you want.
3 Double-click inside the cropping rectangle.
The Set Page Boxes dialog box opens, indicating the margin measurements of the cropping rectangle and the page to
be cropped. You can override these settings or apply other options by making new selections in the dialog box before
clicking OK.
Crop Pages dialog box settings
The Crop Pages options specify a selection of options for cropping pages.
The Crop Margin and Margin Control options are as follows:
Show All Boxes
Shows the black, red, green, and blue rectangles indicating the CropBox, ArtBox, TrimBox, and
BleedBox on the page thumbnails. When two (or more) margins coincide, only a colored line appears.
CropBox
Defines the boundary for the contents of a page when it’s displayed or printed. If not otherwise specified (for
example, in the JDF settings), the crop boundary determines how page contents are positioned on the output medium.
ArtBox
Defines the meaningful content of the page, including white space.
TrimBox
Defines the finished dimensions of the page after trimming.
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BleedBox
Defines the clipping path when the page is printed professionally to allow for paper trimming and folding.
Printing marks may fall outside the bleed area.
Constrain Proportions
Locks the proportions of the crop so that all margins are the same distance.
Remove White Margins
Crops the page to the artwork boundary. This option is useful for trimming the edges of
presentation slides saved as PDFs.
Set To Zero
Restores the crop margins to zero.
Revert To Selection
Reverts to the crop margin selected with the Crop tool.
Undo cropping
Cropping a PDF does not reduce file size because information is merely hidden, not discarded. By resetting the page
size, you can restore the page and its content to its original condition.
1 Open the Set Page Boxes dialog box by choosing Crop Pages from the options menu
in the Page Thumbnails
panel of the navigation pane.
2 Reset the margins to the original dimensions.
Rearranging pages in a PDF
Rotate a page
You can rotate all or selected pages in a document. Rotation is based on 90° increments.
1 Open the Rotate Pages dialog box using one of the following methods:
• Choose Tools > Pages > Rotate.
• From the options menu
in the Page Thumbnails panel of the navigation pane, choose Rotate Pages.
2 For Direction, select the amount and direction of the rotations: Counterclockwise 90 Degrees, Clockwise 90
Degrees, or 180 Degrees.
3 For Pages, specify whether all pages, a selection of pages, or a range of pages are to be rotated.
4 From the Rotate menu, specify even pages, odd pages, or both, and select the orientation of pages to be rotated.
To temporarily change your view of the page, choose View > Rotate View > Clockwise or Counterclockwise. The
original page orientation is restored the next time you open the PDF.
Extract pages in a PDF
Extraction is the process of reusing selected pages of one PDF in a different PDF. Extracted pages contain not only the
content but also all form fields, comments, and links associated with the original page content.
You can leave the extracted pages in the original document or remove them during the extraction process—
comparable to the familiar processes of cutting-and-pasting or copying-and-pasting, but on the page level.
Note: Any bookmarks or article threading associated with pages are not extracted.
1 Open the PDF in Acrobat and choose Tools > Pages > Extract.
2 Specify the range of pages to extract.
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annotate pdf reader; pdf flatten comments
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3 In the Extract Pages dialog box, do one or more of the following before you click OK:
• To remove the extracted pages from the original document, select Delete Pages After Extracting.
• To create a single-page PDF for each extracted page, select Extract Pages As Separate Files.
• To leave the original pages in the document and create a single PDF that includes all of the extracted pages, leave
both check boxes deselected.
The extracted pages are placed in a new document named Pages From [original document name]-[n].
Note: The creator of a PDF document can set the security to prevent the extraction of pages. To view the security settings
for a document, choose File > Properties, and select Security.
More Help topics
“Move or copy a page” on page 120
“Extract component files in a PDF Portfolio” on page 106
Splitting PDFs into multiple documents
You can split one or more documents into multiple smaller documents. When splitting a document, you can specify
the split by maximum number of pages, maximum file size, or by top-level bookmarks.
Split one or more PDFs, with an open document
1 Open the PDF and choose Tools > Pages > Split Document.
2 In the Split Document dialog box, specify the criteria for dividing the document:
Number Of Pages
Specify the maximum number of pages for each document in the split.
File Size
Specify the maximum file size for each document in the split.
Top-level Bookmarks
If the document includes bookmarks, creates one document for every top-level bookmark.
3 To specify a target folder for the split files and filename preferences, click Output Options. Specify the options as
needed, and then click OK.
4 (Optional) To apply the same split to multiple documents, click Apply To Multiple. Click Add Files, and choose
Add Files, Add Folders, or Add Open Files. Select the files or folder, and then click OK.
Split one or more PDFs, with no document open (Windows only)
1 Choose Tools > Pages > Split Document.
2 Click Add Files, and choose Add Files, Add Folders. Select the files or folder, and then click OK.
3 Follow steps 2 and 3 in the procedure for splitting documents with a document open.
Move or copy a page
You can use page thumbnails in the Navigation pane to copy or move pages within a document, and copy pages
between documents.
When you drag a page thumbnail in the Page Thumbnails panel of the Navigation pane, a bar appears near other
thumbnails, indicating the position in which it will appear in the PDF. This bar appears at the bottom or top when the
thumbnails are in a single column, or to the left or right if more than one column of thumbnails is displayed.
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More Help topics
“Insert one PDF into another” on page 109
“About tags, accessibility, reading order, and reflow” on page 271
Move or copy a page within a PDF, using page thumbnails
1 Click the Page Thumbnails button in the Navigation pane to open the Page Thumbnails panel, and select one or
more page thumbnails.
2 Do one of the following:
• To move a page, drag the page number box of the corresponding page thumbnail or the page thumbnail itself to the
new location. A bar appears to show the new position of the page thumbnail. The pages are renumbered.
• To copy a page, Ctrl-drag the page thumbnail to a second location.
Copy a page between two PDFs, using page thumbnails
1 Open both PDFs, and display them side by side.
2 Open the Page Thumbnails panels for both PDFs.
3 Drag the page thumbnail into the Page Thumbnails panel of the target PDF. The page is copied into the document,
and the pages are renumbered.
Delete or replace a page
You can replace an entire PDF page with another PDF page. Only the text and images on the original page are replaced.
Any interactive elements associated with the original page, such as links and bookmarks, are not affected. Likewise,
bookmarks and links that may have been previously associated with the replacement page do not carry over.
Comments, however, are carried over and are combined with any existing comments in the document.
After you delete or replace pages, it’s a good idea to use the Reduce File Size command to rename and save the
restructured document to the smallest possible file size.
A page before and after it is replaced. The page’s bookmarks and links remain in the same locations.
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Delete pages, using the Delete command
Note: You cannot undo the Delete command.
1 Choose Tools > Pages >
Delete.
2 Enter the page range to be deleted, and click OK.
You cannot delete all pages; at least one page must remain in the document.
If you select Use Logical Page Numbers in the Page Display panel of the Preferences dialog box, you can enter a page
number in parentheses to delete the logical equivalent of the page number. For example, if the first page in the
document is numbered i, you can enter (1) in the Delete Pages dialog box, and the page is deleted.
Delete pages, using page thumbnails
1 In the Page Thumbnails panel, select a page or group of pages.
2 Choose Delete Pages from the Page Thumbnails panel options menu
, and click OK.
Replace the contents of a page
1 Open the PDF that contains the pages you want to replace.
2 Choose Tools > Pages > Replace.
3 Select the document containing the replacement pages, and click Select.
4 Under Original, enter the pages to be replaced in the original document.
5 Under Replacement, enter the first page of the replacement page range. The last page is calculated based on the
number of pages to be replaced in the original document.
Replace pages using a page thumbnail
1 Open the PDF that contains the pages you want to replace, and then open the PDF that contains the replacement
pages.
2 In the Pages panel of the PDF that contains the replacement pages, select a page or group of pages:
• Select the page number boxes of the page thumbnails that you want to use as replacement pages.
• Shift-click to select multiple page thumbnails. Ctrl-click to add to the selection.
• Drag a rectangle around a group of page thumbnails.
3 Ctrl+Alt+drag the selected page thumbnails onto the Pages panel of the target document. Release the mouse button
when the pointer is directly over the page number box of the first page thumbnail you want to replace so that these
pages become highlighted.
The pages you selected in the first document replace the same number of pages in the second document, starting at the
page number you selected to drop the new page son.
Renumber pages
The page numbers on the document pages do not always match the page numbers that appear below the page
thumbnails and in the Page Navigation toolbar. Pages are numbered with integers, starting with page 1 for the first
page of the document. Because some PDFs may contain front matter, such as a copyright page and table of contents,
their body pages may not follow the numbering shown in the Page Navigation toolbar.
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Printed page numbering (top) compared to logical page numbering (bottom)
You can number the pages in your document in a variety of ways. You can specify a different numbering style for
groups of pages, such as 1 ,2 ,3, or i, ii, iii, or a ,b, c. You can also customize the numbering system by adding a prefix.
For example, the numbering for chapter 1 could be 1-1, 1-2, 1-3, and so on, and for chapter 2, it could be 2-1, 2-2, 2-
3, and so on.
Using the Number Pages command affects only the page thumbnails on the Pages panel. You can physically add new
page numbers to a PDF using the headers and footers feature.
1 Click the Page Thumbnails button to open the Page Thumbnails panel, and choose Number Pages from the options
menu.
2 Specify a page range. (Selected refers to pages selected in the Page Thumbnails panel.)
3 Select one of the following, and then click OK:
Begin New Section
Starts a new numbering sequence. Choose a style from the pop-up menu, and enter a starting page
number for the section. Specify a prefix, if desired.
Extend Numbering Used In Preceding Section To Selected Pages
Continues the numbering sequence from previous
pages without interruption.
More Help topics
“Add and edit headers and footers” on page 110
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Chapter 5: Saving and exporting PDFs
You can save your changes to an Adobe® PDF or PDF Portfolio in the original PDF or in a copy of the PDF. You can
also save individual PDFs to other file formats, including text, XML, HTML, and Microsoft Word. Saving a PDF in
text format allows you to use the content with a screen reader, screen magnifier, or other assistive technology.
If you don’t have access to the source files that created an Adobe PDF, you can still copy images and text from the PDF
to use elsewhere. You can also export the PDF to a reusable format, or export images in a PDF to another format.
Adobe Reader® users can save a copy of a PDF or PDF Portfolio if the creator of the document has enabled usage rights.
If usage rights are enabled, Reader users can also save comments, entries in form fields, or digital signatures that they
have added to a document. If a document has additional or restricted usage rights, the document message bar under
the toolbar area describes the assigned restrictions or privileges.
Saving PDFs
Save a PDF
Use this method to save PDFs, including PDF Portfolios, and PDFs in which you have added comments, form field
entries, and digital signatures.
Reader users can save PDF Portfolios, comment, fill in forms, and use digital signatures only when the PDF creator
has extended additional rights to Reader users. Reader users can save files in PDF or .txt format.
Note: Saving a digitally signed PDF invalidates the signature.
❖
Do one of the following:
• To save changes to the current file, choose File > Save.
• To save a copy of a PDF, choose File > Save As > PDF.
• In Reader, choose File > Save As > PDF or File > Save As > Text.
• To save a copy of a PDF Portfolio, choose File > Save As > PDF Portfolio.
If you are viewing a PDF in a web browser, the Adobe ®Acrobat® X Pro File menu is not available. Use the Save A Copy
button in the Acrobat toolbar to save the PDF.
More Help topics
“Filling in forms” on page 209
“Participating in a PDF review” on page 143
Recover the last saved version
❖
Choose File > Revert, and then click Revert.
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