How To Make A Pdf With A Transparent Background

Acrobat User Guide
Introduction to Acrobat
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2. What'southward new in Acrobat
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2. Opening and viewing PDFs
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Impress production tools (Acrobat Pro)
1. Impress production tools overview
2. Printer marks and hairlines
3. Previewing output
4. Transparency flattening
5. Color conversion and ink management
6. Trapping color
Preflight (Acrobat Pro)
1. PDF/X-, PDF/A-, and PDF/Eastward-compliant files
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Color management
1. Keeping colors consequent
2. Color settings
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4. Working with color profiles
5. Understanding color management

About flattening

If your document or artwork contains transparency, to exist output it usually needs to undergo a process called flattening. Flattening divides transparent artwork into vector-based areas and rasterized areas. Equally artwork becomes more complex (mixing images, vectors, type, spot colors, overprinting, and so on), and then does the flattening and its results.

Flattening may be necessary when you lot impress or when y'all save or consign to other formats that don't support transparency. To retain transparency without flattening when you lot create PDF files, save your file as Adobe PDF ane.4 (Acrobat 5.0) or later.

You tin can specify flattening settings and and so save and apply them equally transparency flattener presets. Transparent objects are flattened according to the settings in the selected flattener preset.

Transparency flattening cannot be undone after the file is saved.

Overlapping art is divided when flattened.

For more than data on transparency output issues, see the Print Service Provider Resource folio of the Adobe Solutions Network (ASN) (English only), available on the Adobe website.

Flattener Preview dialog box overview

Use the preview options in the Flattener Preview dialog box to highlight the areas and objects that are transparent, every bit well as those affected past transparency flattening. Transparent content is highlighted in red, and the rest of the artwork appears in grayscale.

Use this information to adjust the flattener options before you employ the settings, and then salve them as flattener presets. You tin then use these presets from other dialog boxes. For example, PDF Optimizer (Save Every bit Other > Optimized PDF), Advanced Print Setup dialog box, and the PostScript Settings dialog box (File > Export To).

Open up the Flattener Preview dialog box

Choose Tools > Impress Production > Flattener Preview .

Preview which areas of artwork will be flattened

Apply the preview options in the Flattener Preview to highlight areas that are affected by flattening. You lot can utilize this color-coded information to arrange flattening options.

The Flattener Preview is not intended for precise previewing of spot colors, overprints, and blending modes. Instead, utilize Overprint Preview manner for those purposes.

Display the Flattener Preview panel (or dialog box):

In Illustrator, choose Window > Flattener Preview.
In Acrobat, cull Tools > Print Production > Flattener Preview.
In InDesign, choose Window > Output > Flattener Preview.

From the Highlight menu, choose the kind of areas you want to highlight. The availability of options depends on the content of the artwork.

Select the flattening settings y'all want to use: Either choose a preset or, if bachelor, set specific options.

(Illustrator) If the flattening settings aren't visible, select Show Options from the console carte to display them.

If the artwork contains overprinted objects that collaborate with transparent objects, in Illustrator, select an selection from the Overprints menu. You lot tin can preserve, simulate, or discard overprints. In Acrobat, choose Preserve Overprint to blend the color of transparent artwork with the groundwork colour to create an overprint effect.

At any time, click Refresh to display a fresh preview version based on your settings. Depending on the complexity of the artwork, you may demand to wait a few seconds for the preview image to appear. In InDesign, yous can too cull Automobile Refresh Highlight.

In Illustrator and Acrobat, to magnify the preview, click in the preview area. To zoom out, Alt-click/Pick-click in the preview area. To pan the preview, hold downwardly the spacebar and drag in the preview area.

Transparency Flattener options

You tin can prepare Transparency Flattener options when creating, editing, or previewing flattener presets in Illustrator, InDesign, or Acrobat.

Highlight (preview) options

None (Color Preview)

Disables previewing.

Rasterized Complex Regions

Highlights the areas that will exist rasterized for operation reasons (every bit determined by the Rasters/Vectors slider). Proceed in mind that the boundary of the highlight area has a college probability of producing stitching problems (depending on the print-driver settings and the rasterization resolution). To minimize stitching issues, select Clip Circuitous Regions.

Transparent Objects

Highlights the objects that are sources of transparency, such equally objects with partial opacity (including images with alpha channels), objects with blending modes, and objects with opacity masks. In addition, note that styles and effects may incorporate transparency, and overprinted objects may be treated as sources of transparency if they are involved in transparency or if the overprint needs to be flattened.

All Afflicted Objects

Highlights all objects that are involved in transparency, including transparent objects and objects that are overlapped past transparent objects. The highlighted objects volition exist affected by the flattening process—their strokes or patterns will exist expanded, portions of them may get rasterized, so on.

Afflicted Linked EPS Files (Illustrator only)

Highlights all linked EPS files that are affected past transparency.

Afflicted Graphics (InDesign only)

Highlights all placed content afflicted past transparency or transparency furnishings. This option is useful for service providers who need to see graphics that crave attention to impress properly.

Expanded Patterns (Illustrator and Acrobat)

Highlights all patterns that will exist expanded if involved in transparency.

Outlined Strokes

Highlights all strokes that will be outlined if involved in transparency or because Convert All Strokes To Outlines is selected.

Outlined Text (Illustrator and InDesign)

Highlights all text that volition be outlined if involved in transparency or because Convert All Text To Outlines is selected.

In the final output, outlined strokes and text may appear slightly different from native ones, especially very thin strokes and very small text. Notwithstanding, the Flattener Preview doesn't highlight this contradistinct appearance.

Raster-Fill Text And Strokes (InDesign but)

Highlights text and strokes that have rasterized fills as a result of flattening.

All Rasterized Regions (Illustrator and InDesign)

Highlights objects and intersections of objects that will be rasterized because there is no other way of representing them in PostScript or because they are more complex than the threshold specified by the Rasters/Vectors slider. For example, the intersection of ii transparent gradients volition ever be rasterized, even if the Rasters/Vectors value is 100. The All Rasterized Regions option also shows raster graphics (such as Photoshop files) involved in transparency, and raster effects such as drop shadows and feathers. Note that this option takes longer to process than the others.

Transparency Flattener Preset options

Name/Preset

Specifies the name of the preset. Depending on the dialog box, you can type a name in the Proper noun text box or accept the default. Yous tin can enter the name of an existing preset to edit that preset. However, you tin't edit the default presets.

Raster/Vector balance

Specifies the amount of vector data that will exist preserved. Higher settings preserve more than vector objects, while lower settings rasterize more than vector objects; intermediate settings preserve simple areas in vector form and rasterize complex ones. Select the lowest setting to rasterize all the artwork.

The amount of rasterization that occurs depends on the complexity of the page and the types of overlapping objects.

Line Art And Text Resolution

Rasterizes all objects, including images, vector artwork, text, and gradients, to the specified resolution. Acrobat and InDesign let a maximum of 9600 pixels per inch (ppi) for line art, and 1200 ppi for slope mesh. Illustrator allows a maximum of 9600 ppi for both line art and gradient mesh. The resolution affects the precision of intersections when flattened. Line Art and Text Resolution should generally be fix to 600‑1200 to provide high-quality rasterization, especially on serif or small point sized blazon.

Gradient And Mesh Resolution

Specifies the resolution for gradients and Illustrator mesh objects rasterized as a consequence of flattening, from 72 to 2400 ppi. The resolution affects the precision of intersections when flattened. Slope and mesh resolution should generally be prepare betwixt 150 and 300 ppi, because the quality of the gradients, drop shadows, and feathers do not improve with higher resolutions, but press time and file size increment.

Convert All Text To Outlines

Converts all type objects (betoken type, area type, and path type) to outlines and discards all type glyph information on pages containing transparency. This option ensures that the width of text stays consistent during flattening. Note that enabling this option volition cause small fonts to announced slightly thicker when viewed in Acrobat or printed on low-resolution desktop printers. It doesn't bear on the quality of the type printed on high-resolution printers or imagesetters.

Convert All Strokes To Outlines

Converts all strokes to simple filled paths on pages containing transparency. This choice ensures that the width of strokes stays consistent during flattening. Note that enabling this selection causes thin strokes to appear slightly thicker and may degrade flattening functioning.

Clip Circuitous Regions

Ensures that the boundaries between vector artwork and rasterized artwork autumn along object paths. This pick reduces stitching artifacts that result when role of an object is rasterized while some other part of the object remains in vector form. However, selecting this option may result in paths that are too complex for the printer to handle.

Some impress drivers process raster and vector art differently, sometimes resulting in color stitching. You may be able to minimize stitching problems by disabling some print-driver specific color-management settings. These settings vary with each printer, so see the documentation that came with your printer for details.

Stitching feature in Acrobat — Stitching, where rasters and vectors meet.

(Illustrator only) Select Preserve Alpha Transparency (Flatten Transparency dialog box simply)

Preserves the overall opacity of flattened objects. With this option, blending modes and overprints are lost, but their appearance is retained inside the processed artwork, along with the level of alpha transparency (as when you lot rasterize artwork using a transparent background). Preserve Alpha Transparency can exist useful if y'all are exporting to SWF or SVG, since both of these formats back up alpha transparency.

(Illustrator only) Select Preserve Spot Colors And Overprints (Flatten Transparency dialog box merely)

Generally preserves spot colors. It also preserves overprinting for objects that aren't involved in transparency. Select this option when printing separations if the document contains spot colors and overprinted objects. Deselect this pick when saving files for use in page-layout applications. With this choice selected, overprinted areas that interact with transparency are flattened, while overprinting in other areas is preserved. The results are unpredictable when the file is output from a page-layout application.

Preserve Overprint (Acrobat simply)

Blends the color of transparent artwork with the background colour to create an overprint event.

Most transparency flattener presets

If yous regularly print or export documents that incorporate transparency, you can automate the flattening process by saving flattening settings in a transparency flattener preset. You can and then apply these settings for impress output every bit well as for saving and exporting files to PDF 1.3 (Acrobat four.0) and EPS and PostScript formats. In addition, in Illustrator you tin can apply them when saving files to earlier versions of Illustrator or when copying to the clipboard; in Acrobat, you can also employ them when optimizing PDFs.

These settings also command how flattening occurs when you export to formats that don't support transparency.

Yous can choose a flattener preset in the Avant-garde panel of the Print dialog box or of the format-specific dialog box that appears later on the initial Consign or Save As dialog box. You can create your ain flattener presets or choose from the default options provided with the software. The settings of each of these defaults are designed to match the quality and speed of the flattening with an appropriate resolution for rasterized transparent areas, depending on the document'south intended use:

Loftier Resolution

is for final printing output and for loftier-quality proofs, such as separations-based color proofs.

Medium Resolution

is for desktop proofs and impress-on-need documents that will be printed on PostScript colour printers.

Depression Resolution

is for quick proofs that will be printed on black-and-white desktop printers and for documents that will be published on the web or exported to SVG.

Create a flattener preset

Yous tin relieve transparency flattener presets in a separate file. Using a split up file makes information technology easy to back them up or to make them available to service providers, clients, or others in your workgroup. Once you create a custom flattener preset, you lot can edit information technology in PDF Optimizer.

Flattener presets are stored in the aforementioned location as printer settings files:

(Windows XP)

\Documents and Settings\[current user]\Application Information\Adobe\Acrobat\x.0\Preferences

(Windows Vista®/Windows 7)

\Users\[electric current user]\AppData\Roaming\Adobe\Acrobat\10.0\Preferences

(Mac Bone)

Users/[current user]/Library/Preferences/Adobe/Acrobat/10.0

Flattener presets created in Acrobat have a different file format from the presets created in other Adobe applications, so you cannot share them between applications.

Cull Tools > Impress Product > Flattener Preview.

To base a preset on an existing one, select it from the Preset carte du jour.

If necessary, click Reset to return to the default settings.

Type a name and click OK.

To delete a custom preset, choose information technology from the Preset menu and printing Delete. Depression, Medium, and High settings are built-in and can't be deleted.

Apply a flattener preset

In the Flattener Preview dialog box, choose a preset from the menu, specify a page range, and click Employ.
In the PDF Optimizer, select Transparency on the left, and then select a preset from the list.
In the Advanced Print Setup dialog box, select the Output console on the left, and then select a preset from the Transparency Flattener Preset menu.
Choose File > Consign To > Encapsulated PostScript or PostScript, then click Settings. In the Output panel, select a preset from the Transparency Flattener Preset bill of fare.

Edit a flattener preset in the PDF Optimizer

You tin modify custom presets only.

Choose File > Save Equally Other > Optimized PDF.

Select Transparency on the left.

Double-click the custom preset you want to edit, alter the settings, and click OK.