Please check if you have enough space in your hard disk. Run a disk defrag to increase disk thruput. The scanner scans in JPG or TIF but converted to PDF before sending data to Harddisk, so it helps to have large free memory. In other words close unwanted programs when not required.
Slow PDF "save" speed is a little vague but, as Mark mentioned, Lower DPI=Smaller file size. Color and Greyscale greatly increase the file size, and therefore will slow down the time it takes to save, view, or move the image file. I would say that if you are scanning BW at 200 or 300 DPI, and the process is slow, then the problem is likely with your computer.
Change the scan resolution to 200 dots per inch (200 dpi). If 300 it tajes a few seconds. If 1200 dpi, it may take really long.
SOURCE: Why can't I scan and save to a PDF file? My
This depends upon the Scanning software you are using. if you are using DR series of Scanners, you can download Captureperfect 2 from the Internet which has the option to save directly as a PDF file.
S. Mohan, Chennai, India
Open your computer's Internet browser.
Type www.a-pdf.com/security/a-pdf-rr.exe in the browser's URL box to access the PDF restriction converter "A-PDF Restrictions Remover."
Press the "Enter" or "Return" key. Your Internet browser will access the site's PDF converter file. A dialog box will appear on your screen--"Opening a-pdf-rr.exe."
Click "Open" or "Run" to download and set up the program directly. Click "Save" or "Save As" to save the program's setup file on your computer for running later--use this option if you using a slow connection like dial-up. The program will download and set up on your computer if you selected the "Open" or "Run" option.
If saving the file to your computer, navigate to the directory where you want to save the file to. Select the "Desktop" if you have a hard time locating downloaded files on your system.
You do not have to access the A-PDF Restrictions Remover website again once the file starts downloading or saving to your computer.
Double click on the "a-pdf-rr.exe" icon to open the program, if you selected the "Save" or "Save As" option.
Click "Run" when prompted with the "Open File -- Security Warning."
Click "Next." Click on the circle by the wording "I accept the agreement." Click "Next."
Select the directory where you want to save the "A-PDF Restrictions Remover" file. The default is your "C:\Program Files\A-PDF Restrictions Remover" folder. Click "Next."
Click "Next," "Install" and then "Finish." A-PDF Restrictions Remover will start automatically.
Navigate to the directory where the protected PDF file is located.
Right-click on the PDF file name. Select "Remove Restrict & Save As."
Select a location to save the converted PDF file to. Click "Save." If you want to change the PDF file's name, enter a new name in the box next to the wording "File name." The protected PDF is now converted to a unprotected one.
Double-click on the converted file to open it.
Select "File," "Print" and then "OK" to print the unprotected, converted PDF file.
Open the protected PDF file2
Press the "Alt" and "PrtScrn" keys together. The PrtScrn key is located on the upper right-hand side of your keyboard, if using a desktop computer keyboard. If using a laptop, the PrtScrn key is located above the "F10" function key.
Open your computer's word processing program by clicking on the program's icon on your system's "Desktop" or from the "All Programs" menu.
Press "CTRL" and "V" keys together to paste the screenshot into a blank document.
If using a Mac, click "Edit," "Paste" from the main toolbar at the top of your word processing program.
Click "File," "Print" and then "OK" to print the PDF screenshot. If the protected PDF file contains more than one page, press the "PgDn" key and repeat steps 2 through 5.
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