How to make a pdf file from a scan on a mac

With a flatbed scanner, you can scan multiple smaller images at once, store each image in its own file, and straighten any images that were crooked on the bed during scanning. If you scan an image that has lots of white space, the scanner may import it as more than one scanned image.

A preliminary scan determines what items are on the scanner bed.

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In most cases, the scanned files are saved on your computer. To find out the exact location where the files are saved, or how to choose another location, see your scanner documentation. Also see your scanner documentation for information about how to save scanned files in specific file formats to send or transfer to others.

Open your scanner Connect your scanner to your Mac, plug it in, and turn it on.

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Scan with a document-feeding scanner With a scanner that has an automatic document feeder, you can scan several pages at once. Select Use Document Feeder. You can choose any of the following: Choose the type of image being scanned: Use the Kind pop-up menu. Scan both sides of a page: Select Duplex. Choose a size for the scanned item: Use the Size pop-up menu. Choose where to save the scanned items: Use the Scan To pop-up menu. Click Scan.

Use Continuity Camera to Add Photos to Documents

The scanner scans the pages one at a time. Scan with a flatbed scanner With a flatbed scanner, you can scan multiple smaller images at once, store each image in its own file, and straighten any images that were crooked on the bed during scanning. Place the items on the scanner bed. Applies JPEG compression to the colored image content.

Use JPEG instead. Applies ZIP compression to the colored image content. By default, the scanner application dialog box does not open. Monochrome Scans. Applies the JBIG2 compression method to black-and-white input pages. Highest-quality levels use the lossless method; at lower settings, text is highly compressed. Compatible with Acrobat 5.

Note: For compatibility with Acrobat 4. This fast, lossless compression method is compatible with Acrobat 3. Rotates any page that is not square with the sides of the scanner bed, to make the PDF page align vertically.

Choose On or Off. Background Removal. Whitens nearly white areas of grayscale and color input not black-and-white input. Then, Off or Low should produce good results. If scanning off-white paper or newsprint, use Medium or High to clean up the page. Removes halftone dot structure, which can reduce JPEG compression, cause moire patterns, and make text difficult to recognize.

Suitable for —dpi grayscale or RGB input or, for Adaptive Compression , —dpi black-and-white input. The On setting recommended applies the filter for dpi or higher grayscale and RGB input. Select Off when scanning a page with no pictures or filled areas, or when scanning at a resolution higher than the effective range. Text Sharpening. Sharpens the text of the scanned PDF file.

How to Convert Several Images into a Single PDF Using Preview

The default value is low and suitable for most documents. Increase it if the quality of the printed document is low and the text is unclear. By default the OCR language is picked from default locale. To change the language, click Edit and choose a different language. Acrobat scanning accepts images between 10 dpi and dpi. Also, input resolution higher than dpi is downsampled to dpi or lower.

How to Scan Multiple Pages into one PDF File? []

Lossless compressions can only be applied to monochrome images. If this image is appended to a PDF document, and you save the file using the Save option, the scanned image remains uncompressed. For most pages, black-and-white scanning at dpi produces text best suited for conversion. At dpi, OCR accuracy is slightly lower, and more font-recognition errors occur; at dpi and higher resolution, processing slows, and compressed pages are bigger. If a page has many unrecognized words or small text 9 points or smaller , try scanning at a higher resolution. Scan in black and white whenever possible.

When Recognize Text Using OCR is disabled, full to dpi resolution range may be used, but the recommended resolution is 72 and higher dpi. For Adaptive Compression , dpi is recommended for grayscale or RGB input, or dpi for black-and-white input. Your system may require 50 MB of virtual memory or more to scan the image. At dpi, both scanning and processing typically are about four times slower than at dpi.

Avoid dithering or halftone scanner settings. These settings can improve the appearance of photographs, but they make it difficult to recognize text. If your scanner has the color-filtering capability, consider using a filter or lamp that drops out the background color. If your scanner has a manual brightness control, adjust it so that characters are clean and well-formed. If characters are touching, use a higher brighter setting. If characters are separated, use a lower darker setting. You can use Acrobat to recognize text in previously scanned documents that have already been converted to PDF.

Note: Scanning at dpi produces the best text for conversion. At dpi, OCR accuracy is slightly lower. Optionally, click Settings to open the Recognize Text dialog box, and specify the options as needed. Click Recognize Text. Acrobat creates a layer of text in your PDF that can be searched — or copied and pasted into a new document. Then select the files or folder. Document Language. Determines the type of PDF to produce.

All options require an input resolution of 72 dpi or higher recommended. All formats apply OCR and font and page recognition to the text images and convert them to normal text. Searchable Image. Ensures that text is searchable and selectable. This option keeps the original image, deskews it as needed, and places an invisible text layer over it.

The selection for Downsample Images in this same dialog box determines whether the image is downsampled and to what extent. Searchable Image Exact. This option keeps the original image and places an invisible text layer over it. Recommended for cases requiring maximum fidelity to the original image. Synthesizes a new custom font that closely approximates the original, and preserves the page background using a low-resolution copy.

Downsample To. Decreases the number of pixels in color, grayscale, and monochrome images after OCR is complete.

Scan with a document-feeding scanner

Choose the degree of downsampling to apply. Higher-numbered options do less downsampling, producing higher-resolution PDFs. When you run OCR on a scanned output, Acrobat analyzes bitmaps of text and substitutes words and characters for those bitmap areas. If the ideal substitution is uncertain, Acrobat marks the word as suspect.

Suspects appear in the PDF as the original bitmap of the word, but the text is included on an invisible layer behind the bitmap of the word. This method makes the word searchable even though it is displayed as a bitmap. Acrobat identifies suspected text errors and displays the image and text side by side in the Secondary toolbar. All suspect words on the page are enclosed in boxes. Click the highlighted object or box in the document, and then correct it in the Recognized As box in the Secondary toolbar.

Click Accept. The next suspect is highlighted. Correct mistakes as needed. Click Accept for each correction. Scan documents to PDF Search. Adobe Acrobat User Guide. Select an article:. Scan a paper document to PDF. On Windows:. Create PDFs from Scanner interface; clicking the settings or gear icon shows all the settings for the selected option. On Mac:. Create PDFs from Scanner interface; choose a scanner and then click Next to see the settings for the selected Scanner.

Note: If you want to append the document, which you'll scan, to an existing file, do the following: Choose the Append to Existing File check box. If you've the files open in Acrobat, select an appropriate file from the drop-down list, or click Browse and then select an appropriate file.