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2019-01-28
IT'S BETTER THAN DOCUSIGN I like that you can send to other to sign just like docusign. You can also fill in the blanks. You can share the info and even print. Also is not too pricey. What I don't like is, when I send to multiple signers anyone can sign even on my signature. I wish they'd allow set signatures per person so that folks won't get confused .
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Super good page and it works so well in… Super good page and it works so well in the phone app as well! This is especially good if you have a Chromebook which you can't download Adobe on. I've filled in so many files without issues definitely recommend.
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2022-02-24
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The learning curve is not too steep. I'd feel more confident with it, if there was a way to save the document other than clicking DONE which closes it....it's better than the government forms I've hassled with!
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2020-04-30
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Vera
2020-04-21
Student charged 115€ despite cancelling… Student charged 115€ despite cancelling free trial – very disappointed I am extremely disappointed with my experience on pdffiller. I had signed up for the free trial, made sure to cancel it before the end, and yet I was still charged €115.20 for a full annual subscription without my consent. I am a student, and this unexpected charge has pushed my bank account into overdraft, causing me financial stress. I never agreed to any paid subscription, and when I log into my account, it still shows as “free”, proving that I had cancelled on time. After checking Trustpilot, I realized that many other customers are facing the exact same issue — this seems to be a recurring problem. I have contacted customer support and sincerely hope they will resolve this quickly and refund me. But this situation is really unfair and unacceptable.
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2025-06-17

Improve Columns Resolution Feature

Enhance your data presentation and analysis with the Improve Columns Resolution feature. This tool empowers you to better manage your data, ensuring clarity and precision in your reports. By using this feature, you can transform the way you visualize and interact with your information.

Key Features

Increased visibility for all data points
Enhanced sorting and filtering options
Customizable column width settings
Intuitive user interface for easy navigation
Responsive design that adapts to various devices

Potential Use Cases and Benefits

Generate clearer reports for stakeholders
Make informed decisions with better data insights
Prepare presentations that impress your audience
Analyze trends and patterns more effectively
Collaborate easily with team members on data projects

By utilizing the Improve Columns Resolution feature, you address common issues related to unclear or cramped data displays. This feature allows you to present your information in an organized, accessible manner. With enhanced clarity, you can reduce misunderstandings and allow for deeper analysis, ultimately leading to more informed decision-making.

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In liquid chromatography, the easiest way to increase a solute's retention factor is to use a mobile phase that is a weaker solvent. When the mobile phase has a lower solvent strength, solutes spend proportionally more time in the stationary phase and take longer to elute.
The resolution of an elation is a quantitative measure of how well two elation peaks can be differentiated in a chromatographic separation. It is defined as the difference in retention times between the two peaks, divided by the combined widths of the elation peaks.
As discussed above, the primary factor in determining resolution is the objective numerical aperture, but resolution is also dependent upon the type of specimen, coherence of illumination, degree of aberration correction, and other factors such as contrast enhancing methodology either in the optical system of the
Resolution Rs The most important thing in HPLC is to obtain the optimum resolution in the minimum time. A resolution value of 1.5 or greater between two peaks will ensure that the sample components are well (baseline) separated to a degree at which the area or height of each peak may be accurately measured.
Whether you are performing column chromatography or thin-layer chromatography (TLC), the rate and distance a compound will separate and travel along the chromatography paper/plate or column depends on the polarity of the compound. Another factor that can affect separation is what kind of solvent you are using.
Therefore, increasing the number of theoretical plates by four, increases the resolution by a factor 2. The more theoretical plates available within a column, the more equilibrating between the stationary and mobile phases are possible and the better the quality of the separation.
Column efficiency, also known as plate count, is a measure of the dispersion of a peak. Narrow peaks take up less space in the chromatogram and thus allow more peaks to be separated. Efficiency is usually explained using the concept of theoretical plates.
Column efficiency calculation Column efficiency, indicated as the number of theoretical plates per column, is calculated as N = 5.54 (tR / w0.5)2 where tRy is the retention time of the analyte of interest and w0.5 the width of the peak at half height.

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