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EndText(); // create the new page and add it to the pdf PdfImportedPage page = writer.GetImportedPage(reader, 1); cb.AddTemplate(page, 0, 0); // close the streams and voilá the file should be .... from the existing document using ( PdfReader reader = new PdfReader(pathin)) ... Watermark in PDF file is hiding behind images. Alignment of the air-band receiver consists of simply adjusting L6 for the desired tuning range and peaking the IF transformer (L7) If you are using a signal generator, frequency counter or other VHF receiver for calibration, remember that you want to set the local oscillator frequency 107 MHz higher than the desired signal or range to be received Adjustment of the L6 oscillator coil MUST be made with a non-metallic alignment tool The use of a metal tool of any kind will detune the coil drastically, making alignment almost impossible Also, if you re receiving FM broadcast stations, you have the slug tuned too far down in the coil form Turn it until it is higher in the form and try again One other thing that you can do to improve the operation of your kit is to spread out the three 2-turn coils at the antenna input, L1, L3, and L5 Stretching these out will give you greater sensitivity Once you know you are receiving aircraft or airport transmissions, adjust the IF transformer (L7) for best reception Typically, L7 is adjusted 2 3 turns from the top of the shield can If you don t have any signal reference equipment at home, and are not yet hearing airplanes, your best bet is to pack up your AR1C and needed tools and head for the nearest airport! If there is no control tower, don t hesitate to visit a general aviation service center on the airport grounds If you ve never done this before, you will probably find it to be a fun and interesting experience Ask which are the most active frequencies and adjust L6 and your front panel tuning control until you hear the action A ground service operator or private pilot may be willing to give you a brief test transmission on the 1228 Unicom frequency Remember, also, that if your airport has ATIS transmissions, you can get a steady test signal as soon as you are line-of-sight with its antenna The aircraft receiver does not produce a loud hiss when no signal is being received (unlike an FM receiver or expensive AM receiver); this is due to the somewhat limited amount of IF or Intermediate Frequency gain Increasing the IF gain would produce a hiss and marginally better sensitivity (about a microvolt) but also require much more alignment, AGC circuitry, and builder ability far beyond the intention of this kit. add watermark text to pdf using itextsharp c#: Using iTextSharp To Watermark /Write Text To Existing PDF's ... pdf watermark c# How to add a watermark to a PDF file? - Stack Overflow
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16 Apr 2015 ... Add Watermark to PDFs using iTextSharp . This tutorial focuses on how ... This method adds watermark text under pdf content /// </summary> An antenna for your new aircraft receiver can be as simple as a 21 piece of wire, an extendable whip antenna or a roof-mounted ground-plane aviation antenna Most folks near an airport will get plenty of inthe-air action from a wire or whip antenna, but if you re more than a few miles away, a decent roof-mount antenna is the way to go Radio Shack sells an ideal antenna designed for scanners which covers the aircraft band nicely and it costs around $30 A low cost TV antenna works well, even better if rotated 90 degrees (remember aircraft antennas are vertically polarized) c# get thumbnail of pdf: Generate thumbnail image for office document in c# - MSDN - Microsoft pdf watermark c# Using iTextSharp To Watermark /Write Text To Existing PDF's ...
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Jul 29, 2016 · Let's Show #217 - C# Visual Studio .NET Tutorial - iText# PDF Create Watermark #1. Event ...Duration: 2:31 Posted: Jul 29, 2016 With the varactor tuning control capable of going across 10 15 MHz, and with pilots and controllers talking so briefly, you will need to get used to tuning your receiver! You ll find that ANY knob gives smoother tuning than the bare control shaft, and that a vernier dial will make the procedure even easier but at the expense of being able to check up and down the band quickly, which you might like to do if you re tracking the same airplane The air-band receiver is designed to let you explore the entire communications section of the aviation band If you become really interested only in being able to check a certain frequency such as a nearby FAA control tower, or Unicom, it will be helpful to mark that spot on a dial template such as is reproduced for your convenience below add watermark to pdf c# Using iTextSharp To Watermark/Write Text To Existing PDF's ...
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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. Items in parentheses are optional Peer represents a remote service provider edge LSR that services one or more VPNs VPN could be a group of customer IDs or a combination of customer and destination, as well as just a single VPN ID CoS represents the service differentiation levels within the service provider backbone This is distinct from the DSCP (or equivalent) used on the customer network . the control tower The passive aircraft receiver is shown in Figure 13-4 The passive aircraft receiver can be built small enough to place inside your vest pocket and it operates from an ordinary 9 volt battery The passive aircraft receiver is basically an amplified type of crystal radio designed to receive AM aircraft transmissions The passive design uses no oscillators or other RF circuitry capable of interfering with aircraft communications This receiver utilizes a coil/capacitor tuned front-end, which feeds an RF signal to a detector diode The tuning capacitor may be any small variable with a range from about 5 pF to about 15 or 20 pF The 015 H inductor may be a molded choke or a few turns wound with a small diameter Experiment with the coil to get the desired tuning range The aircraft frequencies are directly above the FM band so a proper inductor will tune FM stations with the capacitor set near maximum capacity (The FM stations will sound distorted since they are being slope detected) A 1N34 germanium detector diode or a Schottky diode like the 1N5711 or HP2835 should be used as the detector diode in this receiver circuit The 10 megohm resistors provide a small diode bias current for better detector efficiency The LM358 dual op-amp amplifier draws under 1 ma so the battery life should be quite long Potentiometer R3 is used to adjust the gain to the second stage of the dual op-amp The second op-amp stage drives a 100 ohm resistor in series with a 100 F capacitor You must use a high impedance crystal headphone, since the op-amp output will not drive a speaker directly A speaker amplifier may be added to drive a speaker or low-z earphone, if desired, but the power consumption will increase sharply, as will the size of the receiver The passive aircraft receiver is powered from an ordinary 9 volt transistor radio battery The entire aircraft band receiver can be built inside a small plastic box Simply mount an SPST slide switch on the side of the case to apply power to the circuit If you elect, you can install a 1 8 phone jack for the crystal headphone. c# add watermark to existing pdf file using itextsharp asp.net: Watermark on a Exisiting PDF using iTextsharp Library
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