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Smallpdf is a Swiss online web-based PDF software, founded in 2013. [2] It offers free version with limited features to compress, convert and edit PDF documents. [3] And its paid version offers advanced features like OCR, compress, and more [4].
Simple Fourier based interpolation based on padding of the frequency domain with zero components (a smooth-window-based approach would reduce the ringing).Beside the good conservation of details, notable is the ringing and the circular bleeding of content from the left border to right border (and way around).
Image scaling can be interpreted as a form of image resampling or image reconstruction from the view of the Nyquist sampling theorem.According to the theorem, downsampling to a smaller image from a higher-resolution original can only be carried out after applying a suitable 2D anti-aliasing filter to prevent aliasing artifacts.
In several historical versions, CutePDF bundles adware with its download. [10] [11] [12]Freeware Genius, in "The best freeware virtual PDF printer: a comparison" (June 16, 2011), wrote: "The virtual printers that we tried but decided to exclude from the comparison were Bolt PDF Printer, CutePDF Writer, ImagePrinter, pdf995, PDFlite and Primo PDF, mainly because they were inferior by ...
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Widely used chroma subsampling formats. Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance.
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