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There are two kinds of PDF watermarks : text watermark and image watermark . Text watermark is generally used in commercial field to show the background ... PC board Remember to cut the extra leads Now locate diode D3, remember to observe the polarity when installing D3 Solder the diode in place, then remove the excess lead lengths Now locate and install capacitors C18, C21, C22 followed by capacitors C23, C24 and C25 Remember electrolytic capacitors have polarity markings and they must be observed for the circuit to operate correctly You will see either a plus or minus marking at one end of the capacitor Once installed, solder the capacitors in place and then remove the extra leads by cutting them flush to the circuit board Finally install an integrated circuit socket for U3 and then place U3 into the socket, but be sure to install it correctly, observing the indented circle as near pin 1 on the IC Finally we are going to install the audio amplifier components First locate resistor R27 and install it on the PC board Next solder it in place and cut the extra leads Now, locate and install capacitors C26, C27, C28, and C29 Remember C26 and C27 are electrolytic types, so polarity must be observed before installing them Finally install an IC socket for U4 the LM386 amplifier IC When installing U4 be sure to observe the correct orientation before inserting it into the socket to prevent damage when power is applied Now you finish up the circuit by installing the 9 volt battery holder, the 9 volt battery clip, followed by switch S1 Once these components have been installed you can locate and install jacks J1 and J2 onto the circuit board If you haven t already installed the potentiometers, R1, R2 and R3, go ahead and install them and solder the controls firmly in place Be sure the mounting tabs are completely soldered for a good mechanical connection Let s take a short break and when we return we will inspect the PC board for poor solder joints and short circuits before applying power to the circuit board Pick up the circuit board and bring the foil side of the board up towards you to inspect the board First, we will look for cold or poor solder joints on the PC board Take a look at each of the solder joints You want to make sure each of the solder joints appears to look clean, smooth and shiny If you see any solder joints that look dull or blobby then you will need to remove the solder from the joint with a solder-sucker or wick and then re-solder the joint, so that it appears to be clean, shiny and smooth. add watermark image to pdf using itextsharp c#: watermark (text or image) in existing pdf - Stack Overflow c# add watermark to existing pdf file using itextsharp set WaterMark Text in PDF using itextsharp in C# ~ Asp .Net ...
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Dear Sir, How to create watermark image at the time of creation new pf pdf document using itextsharp dll(verison 4.1.6) Kindly help me Regards ... Next we will inspect the PC board for short circuits Often stray or cut component leads will bridge across or between circuit traces on the PC board These possible shorts can cause damage to the circuit when power is first applied, so it is best to remove any bridging leads or solder blobs or shorts before power is sent to the circuit board Look over the board carefully for any signs of bridging wires or blobs of solder Once you are comfortable with your inspection, you can lay the circuit board back down on the table create pdf thumbnail image c#: Generate Thumbnail Images from PDF Documents - Aspose. PDF for ... add image watermark to pdf c# How To Add Watermark On PDF Files - C# Corner
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You have to use itextsharp .dll for in .. Here is some example for applying watermark in pdf . Hide Copy Code. iTextSharp .text. Image img ... If your first goal is economy and rugged portability, you will find that the circuit board can be nicely mounted in a standard VHS videotape storage box, which also gives room for a speaker or earphone storage, and even a roll of antenna wire The controls are easily mounted at one end of such a box It may be necessary to cut away the molded posts which secure the tape cassette itself These storage boxes come in several styles, so pick one which truly looks practical as a project enclosure The most economical metal enclosure nicely suited for Ramsey PC board kits is the Radio Shack 270-253A This metal utility cabinet can accommodate one or two different receiver boards plus a speaker, with room for various refinements you might want to add, such as a bigger battery pack, fine tuning control, and so forth When you have selected your enclosure, you can place the circuit board into the case and mount it Be sure to allow the extension of the squelch control, the volume control and the tuning control on the front panel of the chassis The speaker can be mounted on the top of the case, and the earphone and antenna jack can be mounted on the rear of the receiver Congratulations, you have successfully completed your active aircraft band receiver Now you are ready to test and adjust the receiver before setting down and enjoying it Now, you can attach a speaker or pair of headphones to jack J2 Next, attach a whip antenna to jack J1, and then connect a 9 volt battery to the battery clip leads and we can go ahead and test the active add watermark to pdf c# how to add watermark text to pdf file? C# .NET - NullSkull.com
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8 Jul 2013 ... I'm using C# and iTextSharp to add a watermark to my PDF files: ... Image img = iTextSharp .text. Image .GetInstance( WatermarkLocation ); img. aircraft receiver Now, turn the On-Off switch to the ON position Be sure to turn down the squelch control to below the threshold point, so you can hear a hissing sound coming from the speaker or headphone Now, turn up the volume control to about midway Take a few minutes to tune up and down the band with the main tuning control If after about 15 minutes, you do not hear any transmissions on your radio or if you do not hear any hissing sounds from the speaker, then you know there could be a problem with your receiver In the event of a problem with your new aircraft band receiver, you will have to disconnect the speaker, antenna and battery and visually inspect the circuit board for any errors Often a second or new pair of eyes is very helpful in locating problems on circuit boards The most likely causes of circuit failure are misplaced components or components such as diodes and electrolytic capacitors installed backwards The second most likely cause for problems are semiconductors, such as transistors installed backwards Be sure to re-check the manufacturer data sheets for proper pin-out information when installing the transistors Finally, check the orientation of the integrated circuits in their respective sockets; sometimes the ICs can be put in backwards in their sockets causing the circuit to malfunction Once you have fully inspected and hopefully located your problem, you can reconnect the battery, headphones and antenna and then retest the receiver once again add watermark to pdf c# c# itextsharp PDF creation with watermark on each page - Stack ...
After digging into it I found the best way was to add the watermark to each page .... using the following code (perhaps iTextSharp was improved a bit since then. c# add watermark to existing pdf file using itextsharp How to add watermark to PDF file in C# , VB.NET | WinForms - PDF
3 Aug 2018 ... C# example to add watermark to PDF file using Syncfusion .NET PDF library. Text and image watermark also supported. c# ocr pdf: OCR using Tesseract in C# - C# Corner
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