How to Add a Digital Signature into PDF Document #software, #function, #pdf, #document, #pdf #file, #pdf #document, #adobe, #acrobat #reader, #adobe #acrobat, #document #management, #new, #blank, #page, #merge, #merger, #combine, #insert, #split, #splitter, #extract, #split, #reorder, #renumber, #extract, #replace, #delete, #rotate, #rotation, #crop, #margin, #action, #bookmark, #xml, #import, #export, #header, #footer, #watermark, #stamp, #stamper, #style, #text, #image, #bmp, #jpg, #gif, #png, #tiff, #attach, #attachment, #javascript, #js, #digital #signature


#

PDF Document Management 14: Add a Digital Signature into PDF Document

A digital signature (ID). like a conventional handwritten signature, identifies the person signing a document. Unlike a handwritten signature, a digital signature is difficult to forge because it contains encrypted information that is unique to the signer and easily verified. It is usually password protected and can be stored on your computer in PKCS #12 file format (Personal Information Exchange File, PFX).

When you buy a new digital signature, you get .spc file that contains the certificate and .pvk file that contains your private keys. U se Microsoft command-line tool Pvk2Pfx to convert them into a PFX file. See detail here.

The following command generates the .pfx file Mypfxfile.pfx from Mypvkfile.pvk and Myspcfile.spc. The command supplies the password mypassword for the .pvk file, which becomes the password for the .pfx file Mypfxfile.pfx:

pvk2pfx -pvk mypvkfile.pvk -pi mypassword -spc myspcfile.spc -pfx mypfxfile.pfx

This function can create document-level Digital Signature that apply to the entire document.

Here are the steps on how to Add Digital Signature into PDF Document.

2. Select a PFX file with digital signature.

3. The Create Digital Signature to Document dialog box comes up:

  • Select a File. Select a PFX file with digital signature.
  • Enter Password. The password for the digital ID.
  • Allow Multiple Signatures. If checked, the signature and all the other content will be added as a new revision thus not invalidating existing signatures.
  • Keystore Type. The specified keystore type. pkcs12 is the most common type.
  • Keystore Provider. Sets the Cryptographic Service Provider that will sign the document. Leave it empty for pkcs12 type.
  • Signed Type. The mode can be Self signed (Adobe.PPKLite). VeriSign plug-in (VeriSign.PPKVS) and Windows Certificate Security (Adobe.PPKMS).
  • Certification Level. The certification level can be NOT_CERTIFIED. CERTIFIED_NO_CHANGES_ALLOWED. CERTIFIED_FORM_FILLING and CERTIFIED_FORM_FILLING_AND_ANNOTATIONS .
  • Reason. Sets the signing reason.
  • Location. Sets the signing location.
  • Contact. Sets the signing contact.
  • Appearance.
    • Visible. Sets the signature to be visible on the Position of the selected Page.
    • Page Number. Select the page number for the digital signature.
    • Appearance: There are 4 Options: Description Only, Signer Name and Description, Signature Image and Description, and Signature Image only.
    • Let/Right/Top/Bottom. The position for the digital signature.
    • Use Signature Image. Set the signature image if the Appearance option is Signature Image and Description
    • Use Background Image. Set the background image. Leave it blank if no background image.
    • Background Image Scale. Set the scaling to be applied to the background image.

4. Click Close to finish.

Question 1: The Validity of digital signature is displayed as UNKNOWN inside Adobe Reader, how to make Signature Valid ?

Answer:
1. Click inside the signature with Validity Unknown ;
2. The dialog of Signature Validity Status will show up. Click Signature Properties ;
3. From Dialog Signature Properties . click Show Signer’s Certificate ;
4. From Dialog Certificate Viewer , click Trust Tab and then click Add to Trusted Certificates ;
5. Import Contact Settings will come up, click OK.
6. Close Adobe Reader and open your PDF again. You will see the Signature Valid .

Question 2: How to remove the imported digital signature from my computer?

Answer:
1. Open Adobe Reader= Edit Menu= Preferences= Signatures= Identities Trusted Certificates= More;
2. Dialog Digital ID and Trusted Certificate Settings comes up, click Trusted Certificates . Select the Certificate to remove.
3. From Internet Explorer = Tools Menu = Internet Options= Contents= Certificates= Select the Certificate to remove.

PDFill Copyright � 2002-2017 by PlotSoft L.L.C. All rights reserved.


Jet-Lube Inc #jet #lube, #jet-lube, #jetlube, #jet #lube #inc, #jet-lube, #inc, #api, #grease, #greases, #lithium, #lithium #grease, #moly, #moly #paste, #molybdenum #disulfide, #bentone, #calcium, #aluminium, #silicone, #synthetic, #anti-seize, #anti-seize #compounds, #anaerobic, #kopr-kote, #kopr #kote, #copper-kote, #copper #anti-seize, #anti #seize, #copper, #pipe #dope, #nickel, #nikal, #sealant, #thread #sealant, #thread #sealing, #joint, #pipe #thread, #joint #sealant, #silicone, #sealants, #sealant, #gasket, #gaskets, #gasketing, #lubricant, #lubrication, #lubricate, #teflon #tape, #teflon, #ptfe, #penetrating, #drilling #compound, #directional, #drilling, #bearing, #bearings, #food #grade, #food #safe, #cleaner, #degreaser, #water #well, #environmentally #safe, #bio-degradable, #industrial, #grease, #bearing #grease, #msds, #directional #drilling, #dry #film, #coatings, #corrosion #inhibitor, #mold #release, #mro, #aviation, #aerospace, #agriculture, #forestry, #marine, #military, #mining, #nuclear, #vehicle, #industrial #cleaner, #industrial #degreaser, #industrial #lubricant, #industrial #grease, #industrial #corrosion #inhibitor, #valve #lubricant, #industrial #penetrant, #industrial #cutting #fluid, #electrical, #electrical #cleaner, #single #use, #private #label, #high #temperature, #grease #industrial, #grease #oil #and #gas, #military, #army, #navy, #air #force, #airforce, #marine, #mining, #valve, #eco-safe #lubricants, #eco-safe #grease, #extreme, #arctic, #machine #oil, #cutting #fluids, #stamp #and #dye #lubricants, #winter #grade, #anti-corrosion, #protective, #coatings, #marine #service, #offshore, #distributors, #dealers, #octg, #designwater, #design #water, #water #well, #water, #rehabilitation, #drinking #water, #flooded #wells, #under #water, #contaminated, #contaminate, #dectaminate, #well, #wells, #chlorine, #neutralizer, #scale, #scale #remover, #clay


#

WATER REHABILITATION SPECIALTY PRODUCTS

Jet-Lube has acquired Design Water Technologies – a leading manufacturer of a new generation of chemicals for the Water Well and Pipeline industries.

The Design Water product line addresses the needs of water well rehabilitation for both bacterial and mineral contamination as well as drinking water issues arising from flooded wells from natural disasters and excessive water run-off.

A new generation of chemicals.

  1. Their engineers have over 40 years of field experience solving water problems in wells, pipelines, and systems.
  2. Their goal is to provide safe, innovative products that solve real problems to the Groundwater Industry.
  3. They are the only company that designs, manufactures, markets, and provides technical service for their own products
STERILENE – Replaces standard chlorine and no premixing with vinegar

Sterilene is 200 times more effective at removing the environment for coliform bacteria in wells and pipelines without premixing and control of pH. No oxidizer labels. and is price competitive with standard chlorine.

A liquid organic, slightly acidic formulation with polymer dispersants. Effectively dissolves blockage in wells, systems, and water tanks due to mineral scale, slime forming bacteria and the oxides created by the decaying bacteria. Also suspends the debris to be pumped from the well or system, as well as protects metal surfaces from corrosion.

A granular acid that is a formulation of organic acids enhanced by chelates, dispersants, and inhibitors. Non corrosive, safe for disposal and highly effective, it is significantly safer than traditional sulfamic acids yet has unique dissolving capabilities.

Like UNICID GRANULAR it is a formulation of organic acids enhanced by chelates, dispersants, and inhibitors in a liquid encapsulation format.

Chlor-“Oust” is a product designed to neutralize or dechlorinate Sterilene when removed from a well or pipeline for proper disposal.
• dissolves very fast as a fine granule
• neutralizes 100 ppm chlorine (Sterilene) to zero within 4 minutes of recirculation
• has easy to understand directions for usage on site
• even has an easy calculation for maximum product to have on site
• easy and safe disposal to sanitary sewers or land disposal.

Removes clays from an unconsolidated formation to enhance well yields in new and old wells. Traditional polyphosphate treatments promote bacterial growths. This increases the potential for coliform, slime formers, and iron bacteria in wells and systems.

An extremely concentrated, slightly alkaline liquid with a controlled pH buffer. It is a naturally occurring mineral, readily usable by plant and animal life upon disposal. pH Neutralize will safely neutralize any acidic liquids with a specific dosage calculated by the volume and pH level of the acid being treated, without the danger of wildly varying pH levels.

As much as 90% of mineral or bacterial debris (iron or slime) may be on the inside of the well casing or screen. You can physically remove most of this debris prior to a Unicid chemical treatment by wire brushing the screen only for mineral scale, or brushing from the static level to the bottom of the well for bacterial debris.