There is so much instances of okular

Hi so I am using the manjaro kde for quit a while. Recently I found out that there is like 15+ okular apps. I found out this when I clicked the open with other application>view all applications.

Do anyone know why is this happening?

software and hardware info

  Kernel: 5.10.36-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
  Desktop: KDE Plasma 5.21.5 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM 
  Distro: Manjaro Linux base: Arch Linux 
  Type: Laptop System: HP product: HP Laptop 15-db1xxx 
  v: Type1ProductConfigId serial: <filter> Chassis: type: 10 
  serial: <filter> 
  Mobo: HP model: 85EA v: 51.24 serial: <filter> UEFI: Insyde v: F.33 
  date: 08/17/2020 
  ID-1: BAT1 charge: 27.3 Wh (69.5%) condition: 39.3/40.9 Wh (96.2%) 
  volts: 12.6 min: 11.3 model: Hewlett-Packard PABAS0241231 type: Li-ion 
  serial: <filter> status: Charging 
  RAM: total: 3.36 GiB used: 2.24 GiB (66.9%) 
  RAM Report: 
  permissions: Unable to run dmidecode. Root privileges required. 
  Info: Quad Core model: AMD Ryzen 3 3300U with Radeon Vega Mobile Gfx 
  bits: 64 type: MCP arch: Zen/Zen+ note: check rev: 1 cache: L2: 2 MiB 
  bogomips: 16775 
  Speed: 1671 MHz min/max: 1400/2100 MHz boost: enabled Core speeds (MHz): 
  1: 1671 2: 1187 3: 1211 4: 1211 
  Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1 
  bmi2 bpext clflush clflushopt clzero cmov cmp_legacy constant_tsc cpb 
  cpuid cr8_legacy cx16 cx8 de decodeassists extapic extd_apicid f16c 
  flushbyasid fma fpu fsgsbase fxsr fxsr_opt ht hw_pstate ibpb irperf 
  lahf_lm lbrv lm mca mce misalignsse mmx mmxext monitor movbe msr mtrr 
  mwaitx nonstop_tsc nopl npt nrip_save nx osvw overflow_recov pae pat 
  pausefilter pclmulqdq pdpe1gb perfctr_core perfctr_llc perfctr_nb 
  pfthreshold pge pni popcnt pse pse36 rdrand rdseed rdtscp rep_good sep sev 
  sev_es sha_ni skinit smap smca sme smep ssbd sse sse2 sse4_1 sse4_2 sse4a 
  ssse3 succor svm svm_lock syscall tce topoext tsc tsc_scale 
  v_vmsave_vmload vgif vmcb_clean vme vmmcall wdt xgetbv1 xsave xsavec 
  xsaveerptr xsaveopt xsaves 
  Device-1: AMD Picasso vendor: Hewlett-Packard driver: amdgpu v: kernel 
  bus-ID: 03:00.0 chip-ID: 1002:15d8 class-ID: 0300 
  Device-2: Cheng Uei Precision Industry (Foxlink) HP TrueVision HD Camera 
  type: USB driver: uvcvideo bus-ID: 3-2.1:3 chip-ID: 05c8:03d2 
  class-ID: 0e02 
  Display: x11 server: X.Org 1.20.11 compositor: kwin_x11 driver: 
  loaded: amdgpu,ati unloaded: modesetting alternate: fbdev,vesa 
  resolution: 1366x768~60Hz s-dpi: 96 
  OpenGL: renderer: AMD Radeon Vega 6 Graphics (RAVEN DRM 3.40.0 
  5.10.36-2-MANJARO LLVM 11.1.0) 
  v: 4.6 Mesa 21.0.3 direct render: Yes 
  Device-1: AMD Raven/Raven2/Fenghuang HDMI/DP Audio vendor: Hewlett-Packard 
  driver: snd_hda_intel v: kernel bus-ID: 03:00.1 chip-ID: 1002:15de 
  class-ID: 0403 
  Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor 
  vendor: Hewlett-Packard driver: N/A bus-ID: 03:00.5 chip-ID: 1022:15e2 
  class-ID: 0480 
  Device-3: AMD Family 17h HD Audio vendor: Hewlett-Packard 
  driver: snd_hda_intel v: kernel bus-ID: 03:00.6 chip-ID: 1022:15e3 
  class-ID: 0403 
  Sound Server-1: ALSA v: k5.10.36-2-MANJARO running: yes 
  Sound Server-2: JACK v: 0.125.0 running: no 
  Sound Server-3: PulseAudio v: 14.2 running: yes 
  Sound Server-4: PipeWire v: 0.3.28 running: yes 
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Hewlett-Packard driver: r8169 v: kernel port: 3000 bus-ID: 01:00.0 
  chip-ID: 10ec:8168 class-ID: 0200 
  IF: eno1 state: down mac: <filter> 
  Device-2: Realtek RTL8723DE 802.11b/g/n PCIe Adapter 
  vendor: Hewlett-Packard driver: rtw_8723de v: N/A port: 2000 
  bus-ID: 02:00.0 chip-ID: 10ec:d723 class-ID: 0280 
  IF: wlo1 state: up mac: <filter> 
  IP v4: <filter> type: noprefixroute scope: global broadcast: <filter> 
  IP v6: <filter> type: noprefixroute scope: link 
  WAN IP: <filter> 
  Device-1: Realtek Realtek Bluetooth 4.2 Adapter type: USB driver: btusb 
  v: 0.8 bus-ID: 3-2.3:4 chip-ID: 0bda:b009 class-ID: e001 serial: <filter> 
  Report: rfkill ID: hci0 rfk-id: 5 state: down bt-service: enabled,running 
  rfk-block: hardware: no software: yes address: see --recommends 
  Message: No logical block device data found. 
  Message: No RAID data found. 
  Local Storage: total: 931.51 GiB used: 56.99 GiB (6.1%) 
  ID-1: /dev/sda vendor: Western Digital model: WD10SPZX-60Z10T0 
  size: 931.51 GiB speed: 6.0 Gb/s rotation: 5400 rpm serial: <filter> 
  rev: 1A04 scheme: GPT 
  Message: No optical or floppy data found. 
  ID-1: / size: 78.24 GiB used: 56.92 GiB (72.8%) fs: ext4 dev: /dev/sda7 
  label: N/A uuid: fab71c4a-7edd-4e21-b190-f188edd14318 
  ID-2: /boot/efi size: 256 MiB used: 64.7 MiB (25.3%) fs: vfat 
  dev: /dev/sda1 label: SYSTEM uuid: 74B7-F0D4 
  Alert: No swap data was found. 
  ID-1: /dev/sda2 size: 16 MiB fs: <superuser required> label: N/A uuid: N/A 
  ID-2: /dev/sda3 size: 383.84 GiB fs: ntfs label: Windows 
  uuid: B27C9B9D7C9B5B45 
  ID-3: /dev/sda4 size: 233.45 GiB fs: ntfs label: N/A 
  uuid: C20E3C520E3C4229 
  ID-4: /dev/sda5 size: 42.11 GiB fs: ntfs label: N/A uuid: C81E46751E465D16 
  ID-5: /dev/sda6 size: 191.34 GiB fs: ntfs label: New Volume 
  uuid: DA968F19968EF573 
  ID-6: /dev/sda8 size: 511 MiB fs: ntfs label: Windows RE tools 
  uuid: D6B6A5C4B6A5A609 
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Device-1: 1-1:2 info: Shenzhen Rapoo Rapoo 2.4G Wireless Device 
  type: Mouse,Keyboard driver: hid-generic,usbhid interfaces: 3 rev: 2.0 
  speed: 12 Mb/s power: 100mA chip-ID: 24ae:2010 class-ID: 0301 
  Hub-2: 2-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.1 
  speed: 10 Gb/s chip-ID: 1d6b:0003 class-ID: 0900 
  Hub-3: 3-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Hub-4: 3-2:2 info: Genesys Logic Hub ports: 4 rev: 2.0 speed: 480 Mb/s 
  power: 100mA chip-ID: 05e3:0608 class-ID: 0900 
  Device-1: 3-2.1:3 
  info: Cheng Uei Precision Industry (Foxlink) HP TrueVision HD Camera 
  type: Video driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s 
  power: 500mA chip-ID: 05c8:03d2 class-ID: 0e02 
  Device-2: 3-2.3:4 info: Realtek Realtek Bluetooth 4.2 Adapter 
  type: Bluetooth driver: btusb interfaces: 2 rev: 1.1 speed: 12 Mb/s 
  power: 500mA chip-ID: 0bda:b009 class-ID: e001 serial: <filter> 
  Hub-5: 4-0:1 info: Full speed (or root) Hub ports: 1 rev: 3.1 
  speed: 10 Gb/s chip-ID: 1d6b:0003 class-ID: 0900 
  System Temperatures: cpu: 61.0 C mobo: 20.0 C gpu: amdgpu temp: 61.0 C 
  Fan Speeds (RPM): N/A 
  Processes: 241 Uptime: 4h 54m wakeups: 11 Init: systemd v: 247 Compilers: 
  gcc: 10.2.0 clang: 11.1.0 Packages: 1499 pacman: 1477 flatpak: 14 snap: 8 
  Shell: Bash v: 5.1.8 running-in: gnome-terminal inxi: 3.3.04 


Okular is a universal multi files/document viewer. Each filetype that can be handled by it will display the option to be opened with it. That is the normal behavior, but is not multiple instances.
Read more about it here

oh ok thanks for replying :innocent:

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