Acrobat reduces the size of a PDF file without compromising quality. The Acrobat PDF compression tool balances an optimized file size against the expected quality of images, fonts, and other file content. Whether you use all of these settings or only a few depends on how how to flatten a pdf file in adobe acrobat pro dc free download intend to use the files and on the essential properties a file must have.
In most cases, the default settings are appropriate for maximum efficiency—saving space by removing embedded fonts, compressing images, and removing items from the file that are no longer needed. The space audit results may give you ideas about where best to reduce file size.
Auditing the space usage gives you a report of the total number of bytes used for specific document elements, including fonts, images, bookmarks, forms, named destinations, and comments, as well as the total file size. The results are reported both in bytes and as a percentage of the total file size. The PDF Optimizer dialog box opens. You can also audit space usage of a PDF in the Content pane.
From the Content pane options menuchoose Audit Space Usage. From the functionality perspective, both the options are the same. Choose the location to save the file and click Save.
Select the version compatibility that you need, and click OK. In the Output Options dialog box, specify your folder and filename preferences, and click OK. To use the default settings, choose Standard from the Settings menu, and then skip to step 6. The options available in panels vary depending on this choice. Select the check box next to a panel for example, Images, Fonts, Transparencyand then select options in that panel. To prevent all of the options in a panel from executing during optimization, deselect the check box for that panel.
Optional To save your customized settings, click Save and name the settings. To delete a saved setting, choose it in the Settings menu and click Delete. The Images panel of the PDF Optimizer lets you set options for color, how to flatten a pdf file in adobe acrobat pro dc free download, and monochrome image compression, and image downsampling.
Reduces file size by lowering the resolution of images, which involves merging the colors of original pixels into larger pixels. Note : Masked images and images with a size less than by pixels are not downsampled. Reduces file size by eliminating unnecessary pixel data. ZIP is the better choice for illustrations with large areas of solid, flat color, or patterns made up of flat colors.
For JPEG compression, you can also specify lossless so that no pixel data is removed. Compression for monochrome images is lossless, except for JBIG2 compression, which provides both Lossy and Lossless modes of compression.
Available only for JPEG format. Divides the image being compressed into tiles of the given size. If the image height or width is not an even multiple of the tile size, partial tiles are used on the edges. Image data for each tile is individually compressed and can be individually decompressed. The default value of is recommended. When selected, if the image setting will cause an increase in file size, the optimization for that image is skipped.
Text in these languages is replaced with a substitution font when viewed on a system that does not have the original fonts. The Fonts panel of the PDF Optimizer contains two lists for fonts: fonts that are available for unembedding, and fonts to unembed. To unembed fonts in a document, select one or more fonts in the Embedded Fonts list, and click the Unembed button. If your PDF includes artwork that contains transparency, you can use presets in the Transparency panel of PDF Optimizer to flatten transparency and reduce file size.
Flattening incorporates transparency into corresponding artwork by sectioning it into vector-based areas and rasterized areas. PDF Optimizer applies transparency options to all pages in the document before applying other optimization options. If you select the Acrobat 4. This ensures compatibility with Acrobat 4. When you create flattening presets, they appear with the default presets in the Transparency panel.
You can discard objects created in Acrobat and in other applications. Selecting an object removes all occurrences of that object within the PDF. In the Discard Objects area, you can select from these and other options:.
Disables all actions related to submitting or importing form data, and resets form fields. This option retains form objects to which actions are linked. Flatten Form Fields. Makes form fields unusable with no change to their appearance. Form data is merged with the page to become page content. Discard All JavaScript Actions. Discard All Alternate Images. Removes all versions of an image except the one how to flatten a pdf file in adobe acrobat pro dc free download for on-screen viewing.
Some PDFs include multiple versions of the same image for different purposes, such as low-resolution on-screen viewing and high-resolution printing. Discard Embedded Page Thumbnails. Removes embedded page thumbnails. This is useful for large documents, which can take a long time to draw page thumbnails after you click the Page Thumbnails button.
Discard Document Tags. Removes tags from the document, which also removes the accessibility and reflow capabilities for the text. Convert Smooth Lines To Curves. Reduces the number of control points used to build curves in CAD drawings, which result in smaller PDF files and faster on-screen rendering. Detect And Merge Image Fragments. Looks for images or masks that are fragmented into thin slices and tries to merge the slices into a single image or mask. Discard Embedded Print Settings. Discard Embedded Search Index.
Discard Bookmarks. Removes information in the document information dictionary and all metadata streams. Removes all file attachments, including attachments added to the PDF as comments. Removes links to other documents.
Links that jump to other locations within the PDF are not removed. Strips information from a PDF document that is useful only to the application that created the document. This does not affect the functionality of the PDF, but it does decrease the file size. Decreases file size.
The options in the Clean Up panel of the PDF Optimizer dialog box allow you to remove useless items from the document. These items include elements that are obsolete or unnecessary for your intended use of the document.
Removing certain elements can seriously affect the functionality of the PDF. By default, only elements that do not affect functionality are selected. If you are unsure of the implications of removing other options, use the how to flatten a pdf file in adobe acrobat pro dc free download selections. Object Compression Options. Discard Invalid Bookmarks. Discard Invalid Links. Discard Unreferenced Named Destinations.
Removes named destinations that are not being referenced internally from within the PDF document. Because this option does not check for links from other PDF files or websites, it does not fit in some workflows.
Optimize Page Content. Fast Web View restructures a PDF document for page-at-a-time downloading byte-serving from web servers. This option is especially important with large documents that can take a long time to download from a server. Check with your webmaster to make sure that the web server software you use supports page-at-a-time downloading. In the Preferences dialog box under Categoriesselect Documents. Select the same filename and location.
When a message appears asking if you want to overwrite the existing file, click OK. See Run an action. Legal Notices Online Privacy Policy.
Optimizing PDFs Search. Quickly reduce the size of a PDF file online. Try now for free. Some methods of compression may make images unusable in a print production workflow. Quick video tutorial. Click the Audit How to flatten a pdf file in adobe acrobat pro dc free download Usage button at the top of the dialog box.
