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 destined 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 default 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. One option open to you is to upgrade to a paid subscription, but that's expensive when you don't need any of the other tools.
For instance, if you only need a free tool to optimize your weekly newsletter before emailing it to your customers, it doesn't make sense to invest in expensive software.
The free version is virtually unlimited in functionality except for a few small restrictions, such as how large your files can be or how many files you can convert in a single batch.
Even if you opt to upgrade and take advantage of all its basic and advanced PDF tools, you'll be paying a fraction of what it costs for a DC or Pro DC license for Acrobat. You can do most of these with the free trial version, and that includes reducing PDF size. The simple steps are outlined in the following section. The process here has been tremendously simplified so that new or inexperienced users can work like professionals, thereby increasing their efficiency and overall productivity and throughput.
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 default 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 Categories , select 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 Space Usage button at the top of the dialog box. When you are finished selecting options, click OK. To optimize several documents at the same time, use the Output options for the Actions Wizard. Images panel. Specify the following options, as needed:.
Tile Size.
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